Form: This specification covers five classes of a fuel-resistant polysulfide (T) sealing compound supplied as a two-component system. Application: This sealing compound has been used typically for fuel tank sealing cabin pressure sealing@ and aerodynamic smoothing but usage is not limited to such applications. It can be used for faying surface sealing@ for wet-installation of fasteners@ for overcoating fasteners@ and for sealing joints and seams. The sealing compound can be used in fuel areas as will as nonfuel areas. It cures at room temperature and the cure can be accelerated at higher temperatures. AMS 3100 adhesion promoter can be applied before the sealant. The sealing compound is usable fro@ -65 to 250 ??(-54 to 121 ??@ with short-term exposure (six hours) up to 360 ??(182 ??.