PPG Aerospace PR-1782 Class C - AIMS 04-05-001/  AIMS 04-05-12 Spec Low Density Fuel Tank Sealant 

The PPG PR-1782 Class C is a revolutionary two-part, manganese dioxide-cured polysulfide sealant specifically engineered to address the critical needs of fuel efficiency and structural integrity in modern airframes.1 It features a low-density formulation that delivers up to 30\% weight savings compared to traditional sealants, directly optimizing payload and operational costs.
Technical Profile and Key Class C FeatureThe Class C designation is the distinguishing feature, defining a thixotropic, controlled-flow liquid consistency. This makes the PR-1782 Class C the ideal compound for injection, channel filling, or deep gap sealing where a material must flow slightly to fill a complex void but retain enough body to avoid excessive dripping or runout. It is fully qualified to meet stringent Airbus material standards

The PR-1782 Class C is indispensable for specialized sealing tasks in Airbus and other large transport aircraft:

• Injection Sealing: Used to inject into hidden or difficult-to-access seams and channels within the fuel tank structure to create a hidden, pressure-tight seal.
  
• Fillet and Channel Filling: Ideal for filling non-accessible structural channels where the controlled flow consistency ensures complete void coverage.
  
• OEM and MRO Compliance: The AIMS qualification validates its use in both production and maintenance protocols across Airbus aircraft families.

• All in-stock orders are processed within 1–2 business days (excluding weekends and holidays) after receiving your order confirmation email.
• Orders with a lead time will ship according to the estimated shipping time shown on the product page.
• If we experience a high volume of orders or if an item is backordered, processing times may be slightly delayed. We will notify you promptly via email.

• Returns must be made within a maximum of 3 business days after receiving the product, with prior authorization from Aircraft Shop Supply (Return Material Authorization). Returns without prior notice or written authorization will not be accepted.
• For products with 3 to 6 months of remaining shelf life, claims must be made within the next 2 business days after receipt.
• Returns are not accepted for products with less than 3 months of remaining shelf life.
• Returns are not accepted for products purchased during a low Shelf Life promotion, items sold with discounts, or special orders that must be placed directly with the factory.
• The customer is responsible for the return shipping cost, except in cases where the return is due to an error on the part of Aircraft Shop Supply.
• Refunds will only be issued after the product has been inspected and no damage is found.
• A 25% Restocking Fee will be charged for returns of products in good condition that are either no longer needed or were ordered incorrectly.
• A 35% Restocking Fee will be charged for returns of products with one year or less of remaining shelf life.
• No Restocking Fee will be charged if Aircraft Shop Supply is responsible for incorrectly shipping a product, or if the order is damaged upon leaving the warehouse.
• Hazardous Materials & Dangerous Goods: These items are sold as final and are not eligible for return approval.