P/S 890® Class C Fuel Tank Sealant
PPG P/S 890 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. This two-part, manganese dioxide cured polysulfide compound is a roller grade liquid designed for brush and fay sealing of fuel tanks. The cured sealant maintains excellent elastomeric properties after prolonged exposure to jet fuel and avgas.
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PPG P/S 890 Class C aircraft integral fuel tank sealant 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. P/S 890 Class C 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.