PR-1440 Class C is an aircraft integral fuel tank sealant. It has a service temperature range from -65°F (-54°C) to 250°F (135°C). This material is designed for brush and fay sealing of fuel tans and other aircraft fuselage sealing applications. The cured sealant maintains excellent elastomeric properties after prolonged exposure to both jet fuel and aviation gas.
PR-1440 Class C is a two-part, manganese dioxide cure 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.
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