Fuel Tank Sealants / PPG Aerospace
Two-part polysulphide sealant for aircraft fuel tank and fuselage sealing applications, supplied in 100 ml Semkit format.
Documents
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Product information
PPG PS890 B-2 is a two-part polysulphide sealant designed for aircraft fuel tank and fuselage sealing applications. It is commonly used for fillet sealing where long-term fuel resistance and flexibility are required.
Full product record
PPG PS890 B-2 is a two-part polysulphide sealant designed for aircraft fuel tank and fuselage sealing applications. It is commonly used for fillet sealing where long-term fuel resistance and flexibility are required.
This sealant is a manganese dioxide-cured polysulphide compound supplied as a thixotropic, low-sag paste, allowing controlled application using extrusion equipment or hand tools. It operates across a temperature range of -54°C to 121°C, with intermittent exposure up to 135°C, maintaining flexibility and sealing performance under fuel exposure. Once cured at ambient conditions, it forms a resilient, elastomeric seal with strong adhesion to common aerospace substrates. It retains its sealing properties after prolonged exposure to aviation fuels, making it suitable for long-term fuel tank and fuselage sealing applications.
SAE: AMS-S-8802 Type 2 Class B-2 Note: Specifications and approvals may change. Always refer to the relevant Aircraft Maintenance Manual (AMM) or OEM documentation to confirm suitability. Only specifications listed on the order confirmation will be included on the Certificate of Conformance (CoC).
Specifications and approvals may change. Always refer to the relevant AMM or OEM documentation to confirm suitability.