Flamemaster CS-3204 B 1/4 Integral Fuel Tank Sealant (AMS-S-8802B1/4 / MIL-S8802F) Ensure the utmost integrity and safety of your aircraft's fuel systems with Flamemaster CS-3204 B Black Integral Fuel Tank Sealant. This high-grade, two-part polysulfide sealant is specifically engineered for sealing integral fuel tanks and other critical areas requiring exceptional resistance to aviation fuels, lubricants, and demanding environmental conditions. As a "Class B" sealant within the CS-3204 family, it offers a balanced work life suitable for various sealing tasks, providing superior adhesion, flexibility, and durability. The black color aids in visual inspection and provides a clean finish. Meeting the stringent requirements of AMS-S-8802 and MIL-S-8802F, this sealant is crucial for preventing fuel leaks and maintaining aircraft operational safety and longevity. Key Features for Aviation: Specifically designed and qualified for sealing integral fuel tanks in aircraft. Black color allows for easy visual inspection and a clean appearance. Meets the requirements of Aerospace Material Specification AMS-S-8802, a key industry standard for fuel tank sealants. Also meets the requirements of U.S. Military Specification MIL-S-8802F, ensuring military-grade performance and reliability. Provides exceptional resistance to aviation fuels (Jet A, JP-8, Avgas), lubricants, hydraulic fluids, and other chemicals common in aircraft environments. Offers superior adhesion to aircraft aluminum and other common substrates. Remains flexible over a wide range of temperatures, maintaining a tight seal under various operating conditions. Two-part system allows for controlled mixing and application. Critical for preventing fuel leaks and ensuring the structural integrity of fuel tanks. Typical Aviation Applications: Sealing integral fuel tanks in wings and fuselage. Sealing fuel bladders and fuel cells. Sealing access panels and fittings in fuel systems. Sealing other areas requiring resistance to aviation fuels and lubricants. Use in the manufacturing, repair, and maintenance of commercial and military aircraft. Download Technical Data Sheet