A brush consistency compound for sealing integral fuel tanks and pressurized cabins. PR 1440 class A was especially developed for use over a temperature range of -55°C to + 135°C and with outstanding resistance to aircraft fuels (aviation gasoline or jet fuel) and petroleum base lubrificating oils.
PR 1440 class A is a two-part polysulfide liquid polymer. The mixed compound is of fluid consistency which can be applied by brush, once applied around fasteners will not drip or flow from vertical or overhead surfaces. Sealant has excellent adhesion to aluminium, titanium, stainless steel, and other metals.