Flamemaster CS-3808 Class A1/2 Silicone Sealant (BMS-8-68)

Flamemaster CS-3808 Class A Silicone Sealant is a two-part, chemically cured, room-temperature vulcanizing (RTV) silicone compound specifically designed for demanding aerospace, missile, and electronic applications. This sealant is engineered to provide an exceptional combination of high-temperature performance, long-term stability, and ease of application. The "Class A" designation typically refers to a brushable or flowable consistency, making it suitable for thin coatings, potting, or applications where the sealant needs to spread or self-level. Upon curing, CS-3808 forms a flexible and resilient rubber that exhibits excellent thermal stability, electrical properties, and resistance to sponging and reversion over a wide temperature range, along with good adhesion to a variety of surfaces, often with the use of a primer.

Key Features for Aviation:

• Two-Part System: Consists of a base compound and a curing agent, mixed just prior to application.
  
• Silicone RTV Chemistry: Provides inherent high-temperature stability, flexibility, and good electrical insulating properties.
  
• Rapid Room Temperature Cure: Cures effectively at ambient temperatures, allowing for quicker processing and handling.
  
• High Temperature Performance: Designed to withstand extreme temperatures, often operating effectively from very low (e.g., -65°F / -54°C) to very high temperatures (e.g., up to 475°F / 246°C continuous, with intermittent exposure to higher).
  
• Excellent Stability: Resists degradation, sponging, and reversion (returning to a liquid state) over time and temperature cycling.
  
• Good Electrical Properties: Possesses high dielectric strength and good volume resistivity, making it suitable for electrical insulation applications.
  
• Permanent Adhesion: Forms durable bonds to a wide range of substrates, including metals (aluminum, steel) and often requires a primer (e.g., CS9903) for optimal adhesion.
  
• Fluid Resistance: Offers good resistance to distilled water, salt water, hydraulic fluids (like Skydrol), and jet fuel, making it suitable for aerospace environments.
  
• Class A Consistency: Brushable or pourable, ideal for thin coatings, conformal coatings, or applications where flowability is desired.
  
• Versatile: Can be modified to achieve a range of consistencies and cure properties while retaining core performance.

Typical Aviation Applications:

• Insulating Coating and Thermal Barrier: Used as an insulating coating or thermal barrier material on aircraft and missile components where heat transfer needs to be retarded, protecting sensitive parts from high temperatures.
  
• Electrical Encapsulation and Potting: Ideal for encapsulating and potting electrical components, connectors, and wiring harnesses to protect them from moisture, vibration, thermal cycling, and environmental contaminants.
  
• Sealing Applications in High-Temperature Zones: Used for sealing joints, seams, and fasteners in areas of the aircraft that experience elevated temperatures, such as engine compartments or near exhaust systems.
  
• Gasketing: Can form flexible, high-temperature resistant gaskets for various assemblies.
  
• Missile and Electronic Applications: Its robust performance characteristics extend its use beyond aircraft to missile and other advanced electronic systems requiring high reliability.
  
• Corrosion Protection: Provides a barrier against corrosive elements, extending the life of components.

• 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 and damage claims must be made within a maximum of 3 business days after receiving the product, with prior authorization from Aircraft Shop Supply (Return Material Authorization - RMA). Returns without prior notice or written authorization will not be accepted. We strongly recommend inspecting the product upon delivery; many products require special storage conditions for which we are not responsible once they arrive to the client's facility. Please review the product's SDS for proper storage and handling.
• 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.

At Aircraft Shop Supply, we are committed to shipping the highest quality and freshest product possible. To ensure efficient stock rotation and meet aviation industry standards, our inventory management is governed by the following policy:

1. Scope of Application
All Sales Channels: This policy applies to all orders processed by Aircraft Shop Supply, including but not limited to: website purchases, direct email orders, formal Purchase Orders (POs), phone orders, and contract agreements.

2. Inventory Management (FIFO)
All products with an expiration date are managed and shipped on a strict "First In – First Out" (FIFO) basis.

3. Minimum Shipping Margin
Standard Guarantee: We will not ship any products with fewer than 30 days of use remaining (days before expiration), unless previously coordinated and agreed upon with the customer.

No Automatic Guarantees: Outside of this 30-day minimum margin, Aircraft Shop Supply does not make any automatic guarantee as to the specific length of time remaining on any shelf-life item for standard orders.

4. Special Customer Requirements
We understand that certain projects, maintenance schedules, or regulatory standards require strict specifications. If your order has specific shelf-life requirements, please proceed as follows:

How to Request: If you require a specific Date of Manufacture (DOM), Date of Expiration (DOE), or a specific minimum shelf-life percentage (%), you must clearly state this requirement:

In the Comments/Notes section when placing an online order.

Explicitly written on your Purchase Order (PO) or quote request email for offline orders.

Validation Process: Once your requirement is received:

We will ship your order if the available stock matches your specifications.

If we do not have the exact batch, we will contact you prior to shipping with the shelf-life percentage (%) or dates we have available for your acceptance.

5. Limitation of Liability and Validity of Information
To ensure transparency and manage expectations, the following terms and conditions apply:

Time-Limited Validity: Any information provided by our team regarding the remaining shelf-life percentage (%) is valid only at the exact time the inquiry is made. Due to high inventory turnover, availability is subject to change without prior notice.

Informational Purposes Only: Shelf-life data provided by Aircraft Shop Supply is strictly for informational purposes and reflects the availability at the moment of inquiry. It does not constitute a batch reservation or a product warranty.

Supply Chain Liability Exclusion: Aircraft Shop Supply is not responsible for the time elapsed or any product expiration that occurs after the order has been prepared and packed. This includes, but is not limited to: the time between order placement, carrier transit times, intermediary storage, customs delays, and final delivery to the end user. It is the customer's responsibility to account for these logistical lead times within their planning.