Fuel Tank Sealants / PPG Aerospace
Two-part polysulphide sealant for aircraft fuel tank and fuselage sealing applications, supplied in 100 ml Semkit format.
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Product information
PPG PS890 B-2 is used for aircraft fuel tank and fuselage sealing applications. It is commonly selected for fillet sealing where long-term fuel resistance, flexibility and controlled application 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 supplied as a thixotropic, low-sag paste for controlled application using extrusion equipment or hand tools. It operates across a temperature range of -54 degC to 121 degC, with intermittent exposure up to 135 degC.
Once cured, it forms a resilient elastomeric seal with strong adhesion to common aerospace substrates and retains sealing properties after prolonged exposure to aviation fuels.
SAE: AMS-S-8802 Type 2 Class B-2
Specifications and approvals may change. Always refer to the relevant AMM or OEM documentation to confirm suitability.