PR-1440® Class C Aircraft Integral Fuel Tank Sealant

PR-1440 Class C sealant is an aircraft integral fuel tank product with a service range from -65°F to 250°F with short excursions up to 275°F. It is designed for brush and fay sealing of fuel tanks. The cured sealant retains elastomeric properties after exposure to jet fuel and aviation gas. This two-part polysulfide compound is a roller grade liquid applied by brush or extrusion gun.

Discover the Future of Flight

Have questions or need support for your aerospace project? Contact PPG’s aerospace team today for guidance and tailored solutions.

Product Details

PPG PR-1440 Class C sealant is an aircraft integral fuel tank sealant. It has a service temperature range from -65°F (-54°C) to 250°F (121°C), with intermittent excursions up to 275°F (135°C). This material is designed for brush and fay sealing of fuel tanks and other aircraft fuselage sealing applications. The cured sealant maintains excellent elastomeric properties after prolonged exposure to both jet fuel and aviation gas.

PPG PR-1440 Class C sealant is a two-part, manganese dioxide cured polysulfide compound. The uncured material is a roller grade liquid suitable for application by brush, extrusion gun or spatula. It cures at room temperature to form a resilient sealant having excellent adhesion to common aircraft substrates.