WS-8020 Class B
High-Temperature Resistant Fuel Tank and Fuselage Sealant.
WS-8020 Class B is two-component manganese dioxide cured polysulfide sealant designed for fuel tank and fuselage applications. The cured sealant has excellent fuel resistance as well as outstanding sealing characteristics at temperatures ranging from -65F (54C) to 250F (121C), including intermittent exposure up to 360F (182C). WS-8020 Class B exhibits excellent elastomeric properties and retention after prolonged exposure to jet fuel and aviation gasoline.
The uncured product is a low sag, thixotropic paste suitable for application by extrusion gun or spatula. It cures at room temperature forming a resilient rubber, exhibiting outstanding sealing characteristics.
WS-8020 Class B conforms to the requirements of
AMS-8802, AMS3276, and CMNP021 specifications.Formerly: MIL-S-8802. Interchangeable with
- PPG: PR14422 B , PR1440 B , P/S890 B , PR1435 B
- Flamemaster: CS3204 B
