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Formulated by PPG Aerospace, this extrusion-grade paste contains active soluble chromates that act as an effective barrier against common causes of corrosion on aluminum alloys and between dissimilar metals. Once mixed, the material maintains its non-sag properties on vertical and overhead structures, curing at room temperature to form a resilient elastomeric seal. It provides excellent primerless adhesion to common aircraft substrates and retains its physical properties after limited exposure to jet fuel and aviation gasoline under standard operating environments.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003eTechnical Specifications \u0026amp; Cross-References\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer:\u003c\/strong\u003e PPG Aerospace \/ PRC-DeSoto International, Inc.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Line:\u003c\/strong\u003e P\/S 870® Class B (Available in Class B-1\/2 and Class B-2 configurations)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChemical Base:\u003c\/strong\u003e Two-part, manganese dioxide-cured polysulfide paste\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConsistency:\u003c\/strong\u003e High-viscosity, low-sag thixotropic paste (Extrusion \/ Spatula Grade)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eService Temperature Range:\u003c\/strong\u003e -65°F (-54°C) to 250°F (121°C), with intermittent excursions up to 275°F (135°C)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSoluble Chromate Content:\u003c\/strong\u003e 4% (Typical performance value)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication Life:\u003c\/strong\u003e 30 minutes (B-1\/2) \/ 2 hours (B-2) at 77°F (25°C), 50% RH\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTack-Free Time:\u003c\/strong\u003e ≤ 8 hours (B-1\/2) \/ ≤ 24 hours (B-2) at 77°F (25°C), 50% RH\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMixed Color:\u003c\/strong\u003e Gray (Part A Accelerator: Black \/ Part B Base: White)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eCross-References:\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMilitary Specification:\u003c\/strong\u003e Fully qualified to MIL-PRF-81733D Type II (Class B)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAlternative Designations:\u003c\/strong\u003e Pro-Seal 870 Class B, P\/S 870 B-1\/2, P\/S 870 B-2\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTest Compliances:\u003c\/strong\u003e Tested via ASTM B117 (Salt Spray Fog Test for 670 hours) and AMS 2629 (JRF Immersion)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch2\u003eKey Features \u0026amp; Aviation Benefits\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eActive Chromate Inhibition:\u003c\/strong\u003e Formulated with 4% soluble chromates to chemically suppress corrosion development at the interface of aluminum alloys.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThixotropic Non-Sag Profile:\u003c\/strong\u003e High-viscosity paste paste holds its shape without running or sagging when applied to vertical or overhead aircraft components.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHydrocarbon Fluid Resilience:\u003c\/strong\u003e Retains its essential elastomeric sealing properties and flexibility after limited contact with jet fuel and aviation gas.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThermal Excursion Capacity:\u003c\/strong\u003e Functions continuously down to -65°F (-54°C) and withstands intermittent thermal exposures up to 275°F (135°C).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExcellent Intercoat Repairability:\u003c\/strong\u003e Demonstrates superior adhesion to itself, ensuring high compatibility with fresh cured, fuel-aged, or abraded fillets.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFungus Resistance Properties:\u003c\/strong\u003e Evaluated and classified as non-nutrient to prevent biological degradation of the cured barrier.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch2\u003eTypical Applications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFillet Sealing:\u003c\/strong\u003e Extruded or gun-applied into fillet joints, structural seams, and lap joints up to 25 mils thick across airframe sections.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFastener Encapsulation:\u003c\/strong\u003e Used for overcoating and sealing structural fastener patterns, rivets, and bolts to form a corrosion barrier.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDissimilar Metal Isolation:\u003c\/strong\u003e Applied to interfaces where different metallic substrates connect to isolate them from environmental moisture.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"PPG Aerospace","offers":[{"title":"6 oz SemKit","offer_id":51973714575732,"sku":"PS870B1-2","price":142.46,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0888\/2991\/9604\/files\/PS870B1-2-6OZ_50177f32-d4b1-4b09-bf57-9aefebf88fbb.png?v=1748360665"},{"product_id":"ps870b1-2-20z","title":"PPG Aerospace P\/S 870 B1\/2 Gray Sealant BMS5-95 - 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A \/ BMS 5-95 Type I C-20 - 6oz.","description":"\u003cp\u003ePPG Aerospace PS870C80 Corrosion Inhibitive Sealant MIL PRF-81733 Type IV-12 Class1 Gr. A \/ BMS 5-95 Type I C-20\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cb\u003eInterchangeable with:  \u003c\/b\u003e\u003c\/span\u003e\u003cspan style=\"font-size: 0.875rem;\"\u003eFlamemaster \u003c\/span\u003e\u003cspan style=\"font-size: 0.875rem;\"\u003eCS-3213C\u003c\/span\u003e\u003c\/p\u003e","brand":"PPG Aerospace","offers":[{"title":"Default Title","offer_id":51973715165556,"sku":"PS870C80","price":190.01,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0888\/2991\/9604\/files\/PS870C80-60Z.png?v=1748362123"},{"product_id":"cs3213b1-2","title":"Flamemaster CS-3213 B1\/2 Gray MIL-PRF-81733D Type II, CL 1, GR A Spec Corrosion Inhibitive Fuel Resistant Sealant - Pint","description":"\u003ch3\u003eFlamemaster CS 3213 Class B Corrosion Inhibitive Sealant - High-Performance Sealant with Corrosion Protection for Aircraft\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eNSN 8030-00-008-7198    \u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eCS 3213 Class B aerospace sealant was designed for sealing metal components on aircraft systems for protection against corrosion. It acts as a barrier between dissimilar metals as well as protecting aluminum alloys against corrosion and is typically used for sealing faying surfaces and sealing joints. \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKey Features for Aviation:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eHigh-performance sealant specifically designed for aircraft applications with integrated corrosion inhibition.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eProvides excellent adhesion to common aircraft substrates like aluminum and composites.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eOffers good flexibility to accommodate movement and vibration in aircraft structures.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eActively inhibits corrosion, protecting metal surfaces from degradation.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eResistant to many common aircraft fluids and environmental conditions (always verify specific resistance).\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eClass B designation indicates specific handling and application characteristics.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eSuitable for sealing faying surfaces, joints, and other areas prone to corrosion in aircraft.\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eTypical Aviation Applications:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSealing faying surfaces in airframe structures to prevent intergranular corrosion.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eSealing around fasteners and rivets to inhibit corrosion.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eSealing joints and seams where moisture ingress could lead to corrosion.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eProtecting dissimilar metal interfaces from galvanic corrosion.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eUse in the manufacturing and maintenance of commercial, military, and general aviation aircraft, particularly in environments with high corrosion risk.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cb\u003eEquivalent to: PPG PS870\u003c\/b\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003ccenter\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0888\/2991\/9604\/files\/CS-3213-class-B-TDS-English.pdf?v=1746220121\" style=\"background-color: #000; border: none; border-radius: 4px; color: white; padding: 15px 32px; text-align: center; text-decoration: none; display: inline-block; font-size: 16px; width: 80%;\" target=\"_blank\"\u003eDownload Technical Data Sheet\u003c\/a\u003e\u003c\/p\u003e\n\u003c\/center\u003e","brand":"Flamemaster","offers":[{"title":"Default Title","offer_id":51973742723444,"sku":"CS3213B1-2PT","price":92.73,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0888\/2991\/9604\/files\/CS3213B1-2-PINT.png?v=1746062866"},{"product_id":"cs3213b2","title":"Flamemaster CS-3213 B2  MIL-PRF-81733D Type II, CL 1, GR A Spec Corrosion Inhibitive Fuel Resistant Sealant - 6 oz","description":"\u003ch3\u003eFlamemaster CS 3213 Class B Corrosion Inhibitive Sealant - High-Performance Sealant with Corrosion Protection for Aircraft\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eNSN 8030-01-184-0330    \u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eCS 3213 Class B aerospace sealant was designed for sealing metal components on aircraft systems for protection against corrosion. It acts as a barrier between dissimilar metals as well as protecting aluminum alloys against corrosion and is typically used for sealing faying surfaces and sealing joints. \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKey Features for Aviation:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eHigh-performance sealant specifically designed for aircraft applications with integrated corrosion inhibition.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eProvides excellent adhesion to common aircraft substrates like aluminum and composites.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eOffers good flexibility to accommodate movement and vibration in aircraft structures.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eActively inhibits corrosion, protecting metal surfaces from degradation.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eResistant to many common aircraft fluids and environmental conditions (always verify specific resistance).\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eClass B designation indicates specific handling and application characteristics.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eSuitable for sealing faying surfaces, joints, and other areas prone to corrosion in aircraft.\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eTypical Aviation Applications:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSealing faying surfaces in airframe structures to prevent intergranular corrosion.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eSealing around fasteners and rivets to inhibit corrosion.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eSealing joints and seams where moisture ingress could lead to corrosion.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eProtecting dissimilar metal interfaces from galvanic corrosion.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eUse in the manufacturing and maintenance of commercial, military, and general aviation aircraft, particularly in environments with high corrosion risk.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cb\u003eEquivalent to: PPG PS870\u003c\/b\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003ccenter\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0888\/2991\/9604\/files\/CS-3213-class-B-TDS-English.pdf?v=1746220121\" style=\"background-color: #000; border: none; border-radius: 4px; color: white; padding: 15px 32px; text-align: center; text-decoration: none; display: inline-block; font-size: 16px; width: 80%;\" target=\"_blank\"\u003eDownload Technical Data Sheet\u003c\/a\u003e\u003c\/p\u003e\n\u003c\/center\u003e","brand":"Flamemaster","offers":[{"title":"6 oz","offer_id":53655170974068,"sku":"CS3213B2","price":43.09,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0888\/2991\/9604\/files\/CS3213B2.png?v=1746063212"},{"product_id":"flamemaster-cs-3213-b1-2-gray-mil-prf-81733d-ty-2-1-2-cl-1-gr-a-spec-corrosion-inhibitive-fuel-resistant-sealant-6oz","title":"Flamemaster CS-3213 B1\/2 Gray MIL-PRF-81733D Type II, CL 1, GR A Spec Corrosion Inhibitive Fuel Resistant Sealant  - 6oz","description":"\u003ch3\u003eFlamemaster CS 3213 Class B Corrosion Inhibitive Sealant - High-Performance Sealant with Corrosion Protection for Aircraft\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eNSN 8030-01-184-0329    \u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eCS 3213 Class B aerospace sealant was designed for sealing metal components on aircraft systems for protection against corrosion. It acts as a barrier between dissimilar metals as well as protecting aluminum alloys against corrosion and is typically used for sealing faying surfaces and sealing joints. \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKey Features for Aviation:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eHigh-performance sealant specifically designed for aircraft applications with integrated corrosion inhibition.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eProvides excellent adhesion to common aircraft substrates like aluminum and composites.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eOffers good flexibility to accommodate movement and vibration in aircraft structures.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eActively inhibits corrosion, protecting metal surfaces from degradation.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eResistant to many common aircraft fluids and environmental conditions (always verify specific resistance).\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eClass B designation indicates specific handling and application characteristics.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eSuitable for sealing faying surfaces, joints, and other areas prone to corrosion in aircraft.\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eTypical Aviation Applications:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSealing faying surfaces in airframe structures to prevent intergranular corrosion.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eSealing around fasteners and rivets to inhibit corrosion.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eSealing joints and seams where moisture ingress could lead to corrosion.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eProtecting dissimilar metal interfaces from galvanic corrosion.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eUse in the manufacturing and maintenance of commercial, military, and general aviation aircraft, particularly in environments with high corrosion risk.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cb\u003eEquivalent to: PPG PS870\u003c\/b\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003ccenter\u003e\n\u003cp\u003e\u003ca style=\"background-color: #000; border: none; border-radius: 4px; color: white; padding: 15px 32px; text-align: center; text-decoration: none; display: inline-block; font-size: 16px; width: 80%;\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0888\/2991\/9604\/files\/CS-3213-class-B-TDS-English.pdf?v=1746220121\" target=\"_blank\"\u003eDownload Technical Data Sheet\u003c\/a\u003e\u003c\/p\u003e\n\u003c\/center\u003e","brand":"Flamemaster","offers":[{"title":"6oz","offer_id":53677796524404,"sku":"CS3213B1-2","price":43.09,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0888\/2991\/9604\/files\/CS3213B1-2-6.png?v=1746062866"},{"product_id":"flamemaster-cs-3213-b1-2-gray-mil-prf-81733d-type-ii-cl-1-gr-a-spec-corrosion-inhibitive-fuel-resistant-sealant-quart","title":"Flamemaster CS-3213 B1\/2 Gray MIL-PRF-81733D Type II, CL 1, GR A Spec Corrosion Inhibitive Fuel Resistant Sealant - Quart","description":"\u003ch3\u003eFlamemaster CS 3213 Class B Corrosion Inhibitive Sealant - High-Performance Sealant with Corrosion Protection for Aircraft\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eNSN 8030-00-470-9154    \u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eCS 3213 Class B aerospace sealant was designed for sealing metal components on aircraft systems for protection against corrosion. It acts as a barrier between dissimilar metals as well as protecting aluminum alloys against corrosion and is typically used for sealing faying surfaces and sealing joints. \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKey Features for Aviation:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eHigh-performance sealant specifically designed for aircraft applications with integrated corrosion inhibition.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eProvides excellent adhesion to common aircraft substrates like aluminum and composites.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eOffers good flexibility to accommodate movement and vibration in aircraft structures.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eActively inhibits corrosion, protecting metal surfaces from degradation.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eResistant to many common aircraft fluids and environmental conditions (always verify specific resistance).\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eClass B designation indicates specific handling and application characteristics.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eSuitable for sealing faying surfaces, joints, and other areas prone to corrosion in aircraft.\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eTypical Aviation Applications:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSealing faying surfaces in airframe structures to prevent intergranular corrosion.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eSealing around fasteners and rivets to inhibit corrosion.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eSealing joints and seams where moisture ingress could lead to corrosion.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eProtecting dissimilar metal interfaces from galvanic corrosion.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eUse in the manufacturing and maintenance of commercial, military, and general aviation aircraft, particularly in environments with high corrosion risk.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cb\u003eEquivalent to: PPG PS870\u003c\/b\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003ccenter\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0888\/2991\/9604\/files\/CS-3213-class-B-TDS-English.pdf?v=1746220121\" style=\"background-color: #000; border: none; border-radius: 4px; color: white; padding: 15px 32px; text-align: center; text-decoration: none; display: inline-block; font-size: 16px; width: 80%;\" target=\"_blank\"\u003eDownload Technical Data Sheet\u003c\/a\u003e\u003c\/p\u003e\n\u003c\/center\u003e","brand":"Flamemaster","offers":[{"title":"Default Title","offer_id":52109013090676,"sku":"CS3213B1-2QT","price":142.39,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0888\/2991\/9604\/files\/CS3213B1-2QT.png?v=1747764239"},{"product_id":"flamemaster-cs-3213-b2-mil-prf-81733d-type-ii-cl-1-gr-a-spec-corrosion-inhibitive-fuel-resistant-sealant-pint","title":"Flamemaster CS-3213 B2  MIL-PRF-81733D Type II, CL 1, GR A Spec Corrosion Inhibitive Fuel Resistant Sealant - Pint","description":"\u003ch3\u003eFlamemaster CS 3213 Class B Corrosion Inhibitive Sealant - High-Performance Sealant with Corrosion Protection for Aircraft\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eNSN 8030-00-009-5023    \u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eCS 3213 Class B aerospace sealant was designed for sealing metal components on aircraft systems for protection against corrosion. It acts as a barrier between dissimilar metals as well as protecting aluminum alloys against corrosion and is typically used for sealing faying surfaces and sealing joints. \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKey Features for Aviation:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eHigh-performance sealant specifically designed for aircraft applications with integrated corrosion inhibition.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eProvides excellent adhesion to common aircraft substrates like aluminum and composites.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eOffers good flexibility to accommodate movement and vibration in aircraft structures.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eActively inhibits corrosion, protecting metal surfaces from degradation.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eResistant to many common aircraft fluids and environmental conditions (always verify specific resistance).\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eClass B designation indicates specific handling and application characteristics.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eSuitable for sealing faying surfaces, joints, and other areas prone to corrosion in aircraft.\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eTypical Aviation Applications:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSealing faying surfaces in airframe structures to prevent intergranular corrosion.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eSealing around fasteners and rivets to inhibit corrosion.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eSealing joints and seams where moisture ingress could lead to corrosion.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eProtecting dissimilar metal interfaces from galvanic corrosion.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eUse in the manufacturing and maintenance of commercial, military, and general aviation aircraft, particularly in environments with high corrosion risk.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cb\u003eEquivalent to: PPG PS870\u003c\/b\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003ccenter\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0888\/2991\/9604\/files\/CS-3213-class-B-TDS-English.pdf?v=1746220121\" style=\"background-color: #000; border: none; border-radius: 4px; color: white; padding: 15px 32px; text-align: center; text-decoration: none; display: inline-block; font-size: 16px; width: 80%;\" target=\"_blank\"\u003eDownload Technical Data Sheet\u003c\/a\u003e\u003c\/p\u003e\n\u003c\/center\u003e","brand":"Flamemaster","offers":[{"title":"Default Title","offer_id":52109088391540,"sku":"CS3213B2PT","price":92.73,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0888\/2991\/9604\/files\/CS3213B2PT.png?v=1747764287"},{"product_id":"flamemaster-cs-3213-b2-mil-prf-81733d-type-ii-cl-1-gr-a-spec-corrosion-inhibitive-fuel-resistant-sealant-quart","title":"Flamemaster CS-3213 B2  MIL-PRF-81733D Type II, CL 1, GR A Spec Corrosion Inhibitive Fuel Resistant Sealant - Quart","description":"\u003ch3\u003eFlamemaster CS 3213 Class B Corrosion Inhibitive Sealant - High-Performance Sealant with Corrosion Protection for Aircraft\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eNSN 8030-00-008-7200    \u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eCS 3213 Class B aerospace sealant was designed for sealing metal components on aircraft systems for protection against corrosion. It acts as a barrier between dissimilar metals as well as protecting aluminum alloys against corrosion and is typically used for sealing faying surfaces and sealing joints. \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKey Features for Aviation:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eHigh-performance sealant specifically designed for aircraft applications with integrated corrosion inhibition.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eProvides excellent adhesion to common aircraft substrates like aluminum and composites.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eOffers good flexibility to accommodate movement and vibration in aircraft structures.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eActively inhibits corrosion, protecting metal surfaces from degradation.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eResistant to many common aircraft fluids and environmental conditions (always verify specific resistance).\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eClass B designation indicates specific handling and application characteristics.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eSuitable for sealing faying surfaces, joints, and other areas prone to corrosion in aircraft.\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eTypical Aviation Applications:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSealing faying surfaces in airframe structures to prevent intergranular corrosion.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eSealing around fasteners and rivets to inhibit corrosion.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eSealing joints and seams where moisture ingress could lead to corrosion.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eProtecting dissimilar metal interfaces from galvanic corrosion.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eUse in the manufacturing and maintenance of commercial, military, and general aviation aircraft, particularly in environments with high corrosion risk.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cb\u003eEquivalent to: PPG PS870\u003c\/b\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003ccenter\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0888\/2991\/9604\/files\/CS-3213-class-B-TDS-English.pdf?v=1746220121\" style=\"background-color: #000; border: none; border-radius: 4px; color: white; padding: 15px 32px; text-align: center; text-decoration: none; display: inline-block; font-size: 16px; width: 80%;\" target=\"_blank\"\u003eDownload Technical Data Sheet\u003c\/a\u003e\u003c\/p\u003e\n\u003c\/center\u003e","brand":"Flamemaster","offers":[{"title":"Default Title","offer_id":52109091012980,"sku":"CS3213B2QT","price":142.39,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0888\/2991\/9604\/files\/CS3213B2QT.png?v=1747764337"},{"product_id":"flamemaster-cs-3213-a1-2-gray-mil-prf-81733-type-i-cl-1-gr-a-spec-corrosion-inhibitive-fuel-resistant-sealant-quart","title":"Flamemaster CS-3213 A1\/2 Gray MIL-PRF-81733 Type I, CL 1, GR A Spec Corrosion Inhibitive Fuel Resistant Sealant - Quart","description":"\u003ch3\u003eFlamemaster CS-3213 Class A Gray MIL-PRF-81733 Type I, CL 1, GR A Spec Corrosion Inhibitive Fuel Resistant Sealant\u003c\/h3\u003e\n\u003cp\u003eCS 3213 Class A is a two-part, manganese dioxide cured polysulfide sealant specifically formulated as a corrosion inhibitive sealant for aerospace applications. This sealant is designed to provide robust protection against corrosion while simultaneously delivering excellent sealing capabilities. The \"Class A\" designation indicates a brushable or flowable consistency, making it ideal for thin coatings, faying surface applications, or where the sealant needs to fill intricate spaces. Upon curing at room temperature, CS 3213 Class A forms a tough, flexible, and resilient rubber that maintains its integrity under exposure to aviation fuels, lubricants, hydraulic fluids, and environmental elements, providing long-lasting corrosion prevention and leak protection.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKey Features for Aviation:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eTwo-Part System: Consists of a base compound and an accelerator, mixed just prior to application.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003ePolysulfide Chemistry: Provides the fundamental excellent resistance to a wide range of aviation fuels and other aircraft fluids.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eCorrosion Inhibitive: Incorporates active corrosion inhibitors to prevent degradation of metal surfaces, especially in the presence of moisture and dissimilar metals.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eManganese Dioxide Cure: A common curing agent for polysulfide sealants, contributing to robust and durable properties.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eClass A Consistency: Brushable or flowable, making it ideal for application by brush, roller, or spray (if compatible with equipment) for faying surfaces, intricate areas, or thin coatings.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eExcellent Adhesion: Forms strong, durable bonds to typical aircraft substrates, including aluminum, titanium, stainless steel, and composite materials, even on clad aluminum.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eSuperior Fuel and Fluid Resistance: Highly resistant to aviation jet fuels (JP-4, JP-5, JP-8, Jet A\/B), hydraulic fluids (e.g., Skydrol), and engine oils.\u003cbr\u003eWide Service Temperature Range: Maintains flexibility, sealing properties, and corrosion inhibition across the typical operating temperatures of aircraft.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eFlexibility and Resilience: Cures to a flexible, rubbery seal that can withstand aircraft vibrations, thermal cycling, and structural movement without cracking or delamination.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eGood Work Life (Pot Life): Provides sufficient time for application before curing, depending on the specific \"A\" class variant (e.g., A-1\/2, A-2, A-4, where the number indicates the pot life in hours).\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eTypical Aviation Applications:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eFaying Surface Sealing: Applied between mating surfaces of structural components to prevent corrosion and provide a seal against moisture and fluid ingress. This is a primary application.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eFuel Tank Sealing (Internal): Used for sealing internal fuel tank structures, particularly where a brushable product is needed to cover complex geometries or fill small gaps while providing corrosion inhibition.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eFastener Sealing: Applied around rivets, bolts, and other fasteners in corrosion-prone areas to prevent fluid penetration and inhibit corrosion.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eCorrosion-Prone Areas: Used in various compartments and structures susceptible to corrosion, such as bilge areas, landing gear bays, and other hidden areas exposed to environmental elements.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eFilleting and Void Filling (Thin Applications): For creating thin fillets or filling small voids where corrosion protection is needed.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eRepair Applications: An excellent choice for both production and field repairs requiring both sealing and corrosion inhibition.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cb\u003eEquivalent to: PPG PS870\u003c\/b\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003ccenter\u003e\n\u003cp\u003e\u003ca style=\"background-color: #000; border: none; border-radius: 4px; color: white; padding: 15px 32px; text-align: center; text-decoration: none; display: inline-block; font-size: 16px; width: 80%;\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0888\/2991\/9604\/files\/CS-3213-Class-A-TDS-English.pdf?v=1750274959\" target=\"_blank\"\u003eDownload Technical Data Sheet\u003c\/a\u003e\u003c\/p\u003e\n\u003c\/center\u003e","brand":"Flamemaster","offers":[{"title":"Default Title","offer_id":52336576627060,"sku":"CS3213A1-2QT","price":145.56,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0888\/2991\/9604\/files\/CS3213A1-2QT.png?v=1750288047"},{"product_id":"flamemaster-cs-3213-a1-2-gray-mil-prf-81733-type-i-cl-1-gr-a-spec-corrosion-inhibitive-fuel-resistant-sealant-pint","title":"Flamemaster CS-3213 A1\/2 Gray MIL-PRF-81733 Type I, CL 1, GR A Spec Corrosion Inhibitive Fuel Resistant Sealant - Pint","description":"\u003ch3\u003eFlamemaster CS-3213 Class A Gray MIL-PRF-81733 Type I, CL 1, GR A Spec Corrosion Inhibitive Fuel Resistant Sealant\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eNSN 8030-00-008-7207    \u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eCS 3213 Class A is a two-part, manganese dioxide cured polysulfide sealant specifically formulated as a corrosion inhibitive sealant for aerospace applications. This sealant is designed to provide robust protection against corrosion while simultaneously delivering excellent sealing capabilities. The \"Class A\" designation indicates a brushable or flowable consistency, making it ideal for thin coatings, faying surface applications, or where the sealant needs to fill intricate spaces. Upon curing at room temperature, CS 3213 Class A forms a tough, flexible, and resilient rubber that maintains its integrity under exposure to aviation fuels, lubricants, hydraulic fluids, and environmental elements, providing long-lasting corrosion prevention and leak protection.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKey Features for Aviation:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eTwo-Part System: Consists of a base compound and an accelerator, mixed just prior to application.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003ePolysulfide Chemistry: Provides the fundamental excellent resistance to a wide range of aviation fuels and other aircraft fluids.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eCorrosion Inhibitive: Incorporates active corrosion inhibitors to prevent degradation of metal surfaces, especially in the presence of moisture and dissimilar metals.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eManganese Dioxide Cure: A common curing agent for polysulfide sealants, contributing to robust and durable properties.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eClass A Consistency: Brushable or flowable, making it ideal for application by brush, roller, or spray (if compatible with equipment) for faying surfaces, intricate areas, or thin coatings.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eExcellent Adhesion: Forms strong, durable bonds to typical aircraft substrates, including aluminum, titanium, stainless steel, and composite materials, even on clad aluminum.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eSuperior Fuel and Fluid Resistance: Highly resistant to aviation jet fuels (JP-4, JP-5, JP-8, Jet A\/B), hydraulic fluids (e.g., Skydrol), and engine oils.\u003cbr\u003eWide Service Temperature Range: Maintains flexibility, sealing properties, and corrosion inhibition across the typical operating temperatures of aircraft.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eFlexibility and Resilience: Cures to a flexible, rubbery seal that can withstand aircraft vibrations, thermal cycling, and structural movement without cracking or delamination.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eGood Work Life (Pot Life): Provides sufficient time for application before curing, depending on the specific \"A\" class variant (e.g., A-1\/2, A-2, A-4, where the number indicates the pot life in hours).\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eTypical Aviation Applications:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eFaying Surface Sealing: Applied between mating surfaces of structural components to prevent corrosion and provide a seal against moisture and fluid ingress. This is a primary application.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eFuel Tank Sealing (Internal): Used for sealing internal fuel tank structures, particularly where a brushable product is needed to cover complex geometries or fill small gaps while providing corrosion inhibition.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eFastener Sealing: Applied around rivets, bolts, and other fasteners in corrosion-prone areas to prevent fluid penetration and inhibit corrosion.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eCorrosion-Prone Areas: Used in various compartments and structures susceptible to corrosion, such as bilge areas, landing gear bays, and other hidden areas exposed to environmental elements.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eFilleting and Void Filling (Thin Applications): For creating thin fillets or filling small voids where corrosion protection is needed.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eRepair Applications: An excellent choice for both production and field repairs requiring both sealing and corrosion inhibition.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cb\u003eEquivalent to: PPG PS870\u003c\/b\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003ccenter\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0888\/2991\/9604\/files\/CS-3213-Class-A-TDS-English.pdf?v=1750274959\" style=\"background-color: #000; border: none; border-radius: 4px; color: white; padding: 15px 32px; text-align: center; text-decoration: none; display: inline-block; font-size: 16px; width: 80%;\" target=\"_blank\"\u003eDownload Technical Data Sheet\u003c\/a\u003e\u003c\/p\u003e\n\u003c\/center\u003e","brand":"Flamemaster","offers":[{"title":"Default Title","offer_id":52336661725556,"sku":"CS3213A1-2PT","price":94.39,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0888\/2991\/9604\/files\/CS3213A1-2PT.png?v=1750287541"},{"product_id":"flamemaster-cs-3213-a1-2-gray-mil-prf-81733-type-i-cl-1-gr-a-spec-corrosion-inhibitive-fuel-resistant-sealant-6oz","title":"Flamemaster CS-3213 A1\/2 Gray MIL-PRF-81733 Type I, CL 1, GR A Spec Corrosion Inhibitive Fuel Resistant Sealant - 6oz.","description":"\u003ch3\u003eFlamemaster CS-3213 Class A Gray MIL-PRF-81733 Type I, CL 1, GR A Spec Corrosion Inhibitive Fuel Resistant Sealant\u003c\/h3\u003e\n\u003cp\u003eCS 3213 Class A is a two-part, manganese dioxide cured polysulfide sealant specifically formulated as a corrosion inhibitive sealant for aerospace applications. This sealant is designed to provide robust protection against corrosion while simultaneously delivering excellent sealing capabilities. The \"Class A\" designation indicates a brushable or flowable consistency, making it ideal for thin coatings, faying surface applications, or where the sealant needs to fill intricate spaces. Upon curing at room temperature, CS 3213 Class A forms a tough, flexible, and resilient rubber that maintains its integrity under exposure to aviation fuels, lubricants, hydraulic fluids, and environmental elements, providing long-lasting corrosion prevention and leak protection.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKey Features for Aviation:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eTwo-Part System: Consists of a base compound and an accelerator, mixed just prior to application.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003ePolysulfide Chemistry: Provides the fundamental excellent resistance to a wide range of aviation fuels and other aircraft fluids.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eCorrosion Inhibitive: Incorporates active corrosion inhibitors to prevent degradation of metal surfaces, especially in the presence of moisture and dissimilar metals.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eManganese Dioxide Cure: A common curing agent for polysulfide sealants, contributing to robust and durable properties.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eClass A Consistency: Brushable or flowable, making it ideal for application by brush, roller, or spray (if compatible with equipment) for faying surfaces, intricate areas, or thin coatings.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eExcellent Adhesion: Forms strong, durable bonds to typical aircraft substrates, including aluminum, titanium, stainless steel, and composite materials, even on clad aluminum.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eSuperior Fuel and Fluid Resistance: Highly resistant to aviation jet fuels (JP-4, JP-5, JP-8, Jet A\/B), hydraulic fluids (e.g., Skydrol), and engine oils.\u003cbr\u003eWide Service Temperature Range: Maintains flexibility, sealing properties, and corrosion inhibition across the typical operating temperatures of aircraft.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eFlexibility and Resilience: Cures to a flexible, rubbery seal that can withstand aircraft vibrations, thermal cycling, and structural movement without cracking or delamination.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eGood Work Life (Pot Life): Provides sufficient time for application before curing, depending on the specific \"A\" class variant (e.g., A-1\/2, A-2, A-4, where the number indicates the pot life in hours).\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eTypical Aviation Applications:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eFaying Surface Sealing: Applied between mating surfaces of structural components to prevent corrosion and provide a seal against moisture and fluid ingress. This is a primary application.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eFuel Tank Sealing (Internal): Used for sealing internal fuel tank structures, particularly where a brushable product is needed to cover complex geometries or fill small gaps while providing corrosion inhibition.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eFastener Sealing: Applied around rivets, bolts, and other fasteners in corrosion-prone areas to prevent fluid penetration and inhibit corrosion.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eCorrosion-Prone Areas: Used in various compartments and structures susceptible to corrosion, such as bilge areas, landing gear bays, and other hidden areas exposed to environmental elements.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eFilleting and Void Filling (Thin Applications): For creating thin fillets or filling small voids where corrosion protection is needed.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eRepair Applications: An excellent choice for both production and field repairs requiring both sealing and corrosion inhibition.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cb\u003eEquivalent to: PPG PS870\u003c\/b\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003ccenter\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0888\/2991\/9604\/files\/CS-3213-Class-A-TDS-English.pdf?v=1750274959\" style=\"background-color: #000; border: none; border-radius: 4px; color: white; padding: 15px 32px; text-align: center; text-decoration: none; display: inline-block; font-size: 16px; width: 80%;\" target=\"_blank\"\u003eDownload Technical Data Sheet\u003c\/a\u003e\u003c\/p\u003e\n\u003c\/center\u003e","brand":"Flamemaster","offers":[{"title":"Default Title","offer_id":52336672178548,"sku":"CS3213A1-2KIT","price":44.43,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0888\/2991\/9604\/files\/CS3213A1-2KIT.png?v=1750287241"},{"product_id":"flamemaster-cs-3213-a1-2-gray-mil-prf-81733-type-i-cl-1-gr-a-spec-corrosion-inhibitive-fuel-resistant-sealant-quart-1","title":"Flamemaster CS-3213 A2 Gray MIL-PRF-81733 Type I, CL 1, GR A Spec Corrosion Inhibitive Fuel Resistant Sealant - Quart","description":"\u003ch3\u003eFlamemaster CS-3213 Class A Gray MIL-PRF-81733 Type I, CL 1, GR A Spec Corrosion Inhibitive Fuel Resistant Sealant\u003c\/h3\u003e\n\u003cp\u003eCS 3213 Class A is a two-part, manganese dioxide cured polysulfide sealant specifically formulated as a corrosion inhibitive sealant for aerospace applications. This sealant is designed to provide robust protection against corrosion while simultaneously delivering excellent sealing capabilities. The \"Class A\" designation indicates a brushable or flowable consistency, making it ideal for thin coatings, faying surface applications, or where the sealant needs to fill intricate spaces. Upon curing at room temperature, CS 3213 Class A forms a tough, flexible, and resilient rubber that maintains its integrity under exposure to aviation fuels, lubricants, hydraulic fluids, and environmental elements, providing long-lasting corrosion prevention and leak protection.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKey Features for Aviation:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eTwo-Part System: Consists of a base compound and an accelerator, mixed just prior to application.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003ePolysulfide Chemistry: Provides the fundamental excellent resistance to a wide range of aviation fuels and other aircraft fluids.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eCorrosion Inhibitive: Incorporates active corrosion inhibitors to prevent degradation of metal surfaces, especially in the presence of moisture and dissimilar metals.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eManganese Dioxide Cure: A common curing agent for polysulfide sealants, contributing to robust and durable properties.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eClass A Consistency: Brushable or flowable, making it ideal for application by brush, roller, or spray (if compatible with equipment) for faying surfaces, intricate areas, or thin coatings.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eExcellent Adhesion: Forms strong, durable bonds to typical aircraft substrates, including aluminum, titanium, stainless steel, and composite materials, even on clad aluminum.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eSuperior Fuel and Fluid Resistance: Highly resistant to aviation jet fuels (JP-4, JP-5, JP-8, Jet A\/B), hydraulic fluids (e.g., Skydrol), and engine oils.\u003cbr\u003eWide Service Temperature Range: Maintains flexibility, sealing properties, and corrosion inhibition across the typical operating temperatures of aircraft.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eFlexibility and Resilience: Cures to a flexible, rubbery seal that can withstand aircraft vibrations, thermal cycling, and structural movement without cracking or delamination.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eGood Work Life (Pot Life): Provides sufficient time for application before curing, depending on the specific \"A\" class variant (e.g., A-1\/2, A-2, A-4, where the number indicates the pot life in hours).\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eTypical Aviation Applications:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eFaying Surface Sealing: Applied between mating surfaces of structural components to prevent corrosion and provide a seal against moisture and fluid ingress. This is a primary application.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eFuel Tank Sealing (Internal): Used for sealing internal fuel tank structures, particularly where a brushable product is needed to cover complex geometries or fill small gaps while providing corrosion inhibition.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eFastener Sealing: Applied around rivets, bolts, and other fasteners in corrosion-prone areas to prevent fluid penetration and inhibit corrosion.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eCorrosion-Prone Areas: Used in various compartments and structures susceptible to corrosion, such as bilge areas, landing gear bays, and other hidden areas exposed to environmental elements.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eFilleting and Void Filling (Thin Applications): For creating thin fillets or filling small voids where corrosion protection is needed.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eRepair Applications: An excellent choice for both production and field repairs requiring both sealing and corrosion inhibition.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cb\u003eEquivalent to: PPG PS870\u003c\/b\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003ccenter\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0888\/2991\/9604\/files\/CS-3213-Class-A-TDS-English.pdf?v=1750274959\" style=\"background-color: #000; border: none; border-radius: 4px; color: white; padding: 15px 32px; text-align: center; text-decoration: none; display: inline-block; font-size: 16px; width: 80%;\" target=\"_blank\"\u003eDownload Technical Data Sheet\u003c\/a\u003e\u003c\/p\u003e\n\u003c\/center\u003e","brand":"Flamemaster","offers":[{"title":"Default Title","offer_id":52337865785716,"sku":"CS3213A2QT","price":145.56,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0888\/2991\/9604\/files\/CS3213A2QT.png?v=1750709826"},{"product_id":"flamemaster-cs-3213-a2-gray-mil-prf-81733-type-i-cl-1-gr-a-spec-corrosion-inhibitive-fuel-resistant-sealant-pint","title":"Flamemaster CS-3213 A2 Gray MIL-PRF-81733 Type I, CL 1, GR A Spec Corrosion Inhibitive Fuel Resistant Sealant - Pint","description":"\u003ch3\u003eFlamemaster CS-3213 Class A Gray MIL-PRF-81733 Type I, CL 1, GR A Spec Corrosion Inhibitive Fuel Resistant Sealant\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eNSN 8030-00-008-7196    \u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eCS 3213 Class A is a two-part, manganese dioxide cured polysulfide sealant specifically formulated as a corrosion inhibitive sealant for aerospace applications. This sealant is designed to provide robust protection against corrosion while simultaneously delivering excellent sealing capabilities. The \"Class A\" designation indicates a brushable or flowable consistency, making it ideal for thin coatings, faying surface applications, or where the sealant needs to fill intricate spaces. Upon curing at room temperature, CS 3213 Class A forms a tough, flexible, and resilient rubber that maintains its integrity under exposure to aviation fuels, lubricants, hydraulic fluids, and environmental elements, providing long-lasting corrosion prevention and leak protection.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKey Features for Aviation:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eTwo-Part System: Consists of a base compound and an accelerator, mixed just prior to application.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003ePolysulfide Chemistry: Provides the fundamental excellent resistance to a wide range of aviation fuels and other aircraft fluids.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eCorrosion Inhibitive: Incorporates active corrosion inhibitors to prevent degradation of metal surfaces, especially in the presence of moisture and dissimilar metals.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eManganese Dioxide Cure: A common curing agent for polysulfide sealants, contributing to robust and durable properties.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eClass A Consistency: Brushable or flowable, making it ideal for application by brush, roller, or spray (if compatible with equipment) for faying surfaces, intricate areas, or thin coatings.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eExcellent Adhesion: Forms strong, durable bonds to typical aircraft substrates, including aluminum, titanium, stainless steel, and composite materials, even on clad aluminum.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eSuperior Fuel and Fluid Resistance: Highly resistant to aviation jet fuels (JP-4, JP-5, JP-8, Jet A\/B), hydraulic fluids (e.g., Skydrol), and engine oils.\u003cbr\u003eWide Service Temperature Range: Maintains flexibility, sealing properties, and corrosion inhibition across the typical operating temperatures of aircraft.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eFlexibility and Resilience: Cures to a flexible, rubbery seal that can withstand aircraft vibrations, thermal cycling, and structural movement without cracking or delamination.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eGood Work Life (Pot Life): Provides sufficient time for application before curing, depending on the specific \"A\" class variant (e.g., A-1\/2, A-2, A-4, where the number indicates the pot life in hours).\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eTypical Aviation Applications:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eFaying Surface Sealing: Applied between mating surfaces of structural components to prevent corrosion and provide a seal against moisture and fluid ingress. This is a primary application.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eFuel Tank Sealing (Internal): Used for sealing internal fuel tank structures, particularly where a brushable product is needed to cover complex geometries or fill small gaps while providing corrosion inhibition.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eFastener Sealing: Applied around rivets, bolts, and other fasteners in corrosion-prone areas to prevent fluid penetration and inhibit corrosion.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eCorrosion-Prone Areas: Used in various compartments and structures susceptible to corrosion, such as bilge areas, landing gear bays, and other hidden areas exposed to environmental elements.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eFilleting and Void Filling (Thin Applications): For creating thin fillets or filling small voids where corrosion protection is needed.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eRepair Applications: An excellent choice for both production and field repairs requiring both sealing and corrosion inhibition.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cb\u003eEquivalent to: PPG PS870\u003c\/b\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003ccenter\u003e\n\u003cp\u003e\u003ca style=\"background-color: #000; border: none; border-radius: 4px; color: white; padding: 15px 32px; text-align: center; text-decoration: none; display: inline-block; font-size: 16px; width: 80%;\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0888\/2991\/9604\/files\/CS-3213-Class-A-TDS-English.pdf?v=1750274959\" target=\"_blank\"\u003eDownload Technical Data Sheet\u003c\/a\u003e\u003c\/p\u003e\n\u003c\/center\u003e","brand":"Flamemaster","offers":[{"title":"Default Title","offer_id":52337941741940,"sku":"CS3213A2PT","price":94.39,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0888\/2991\/9604\/files\/CS3213A2PT.png?v=1750709746"},{"product_id":"flamemaster-cs-3213-a2-gray-mil-prf-81733-type-i-cl-1-gr-a-spec-corrosion-inhibitive-fuel-resistant-sealant-6oz","title":"Flamemaster CS-3213 A2 Gray MIL-PRF-81733 Type I, CL 1, GR A Spec Corrosion Inhibitive Fuel Resistant Sealant - 6oz.","description":"\u003ch3\u003eFlamemaster CS-3213 Class A Gray MIL-PRF-81733 Type I, CL 1, GR A Spec Corrosion Inhibitive Fuel Resistant Sealant\u003c\/h3\u003e\n\u003cp\u003eCS 3213 Class A is a two-part, manganese dioxide cured polysulfide sealant specifically formulated as a corrosion inhibitive sealant for aerospace applications. This sealant is designed to provide robust protection against corrosion while simultaneously delivering excellent sealing capabilities. The \"Class A\" designation indicates a brushable or flowable consistency, making it ideal for thin coatings, faying surface applications, or where the sealant needs to fill intricate spaces. Upon curing at room temperature, CS 3213 Class A forms a tough, flexible, and resilient rubber that maintains its integrity under exposure to aviation fuels, lubricants, hydraulic fluids, and environmental elements, providing long-lasting corrosion prevention and leak protection.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKey Features for Aviation:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eTwo-Part System: Consists of a base compound and an accelerator, mixed just prior to application.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003ePolysulfide Chemistry: Provides the fundamental excellent resistance to a wide range of aviation fuels and other aircraft fluids.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eCorrosion Inhibitive: Incorporates active corrosion inhibitors to prevent degradation of metal surfaces, especially in the presence of moisture and dissimilar metals.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eManganese Dioxide Cure: A common curing agent for polysulfide sealants, contributing to robust and durable properties.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eClass A Consistency: Brushable or flowable, making it ideal for application by brush, roller, or spray (if compatible with equipment) for faying surfaces, intricate areas, or thin coatings.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eExcellent Adhesion: Forms strong, durable bonds to typical aircraft substrates, including aluminum, titanium, stainless steel, and composite materials, even on clad aluminum.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eSuperior Fuel and Fluid Resistance: Highly resistant to aviation jet fuels (JP-4, JP-5, JP-8, Jet A\/B), hydraulic fluids (e.g., Skydrol), and engine oils.\u003cbr\u003eWide Service Temperature Range: Maintains flexibility, sealing properties, and corrosion inhibition across the typical operating temperatures of aircraft.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eFlexibility and Resilience: Cures to a flexible, rubbery seal that can withstand aircraft vibrations, thermal cycling, and structural movement without cracking or delamination.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eGood Work Life (Pot Life): Provides sufficient time for application before curing, depending on the specific \"A\" class variant (e.g., A-1\/2, A-2, A-4, where the number indicates the pot life in hours).\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eTypical Aviation Applications:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eFaying Surface Sealing: Applied between mating surfaces of structural components to prevent corrosion and provide a seal against moisture and fluid ingress. This is a primary application.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eFuel Tank Sealing (Internal): Used for sealing internal fuel tank structures, particularly where a brushable product is needed to cover complex geometries or fill small gaps while providing corrosion inhibition.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eFastener Sealing: Applied around rivets, bolts, and other fasteners in corrosion-prone areas to prevent fluid penetration and inhibit corrosion.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eCorrosion-Prone Areas: Used in various compartments and structures susceptible to corrosion, such as bilge areas, landing gear bays, and other hidden areas exposed to environmental elements.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eFilleting and Void Filling (Thin Applications): For creating thin fillets or filling small voids where corrosion protection is needed.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eRepair Applications: An excellent choice for both production and field repairs requiring both sealing and corrosion inhibition.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cb\u003eEquivalent to: PPG PS870\u003c\/b\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003ccenter\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0888\/2991\/9604\/files\/CS-3213-Class-A-TDS-English.pdf?v=1750274959\" style=\"background-color: #000; border: none; border-radius: 4px; color: white; padding: 15px 32px; text-align: center; text-decoration: none; display: inline-block; font-size: 16px; width: 80%;\" target=\"_blank\"\u003eDownload Technical Data Sheet\u003c\/a\u003e\u003c\/p\u003e\n\u003c\/center\u003e","brand":"Flamemaster","offers":[{"title":"Default Title","offer_id":52337952948596,"sku":"CS3213A2KIT","price":44.43,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0888\/2991\/9604\/files\/CS3213A2KIT.png?v=1753113158"}],"url":"https:\/\/145.aero\/collections\/fuel-tank-anti-corrosion-with-chromate.oembed?page=2","provider":"Aircraft Shop Supply","version":"1.0","type":"link"}