WS-8020 Class B is two component manganese dioxide cured polysulfide sealant designed to meet the requirements of both AMS-3276 and AMS-8802 fuel tank specifications.
It has outstanding adhesion to the common aerospace substrates as well as excellent sealing characteristics at temperatures ranging from -65°F (-54°C) to 250°F (121°C), including intermittent exposure up to 360°F (182°C).
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. WS-8020 Class B is offered in both a standard cure and fast cure version (WS-8020FC-Class B).
Meets Requirements: AMS-S-8802 and CMNP021
