PR 1782 Class S Sprayable Fuel Tank Sealant. PPG Aerospace® Sealants
A brush consistency low gravity compound for sealing integral fuel tanks and pressurized cabins. PR 1782 class S was especially developed for use over a temperature range of -55°C to + 120°C and with outstanding resistance to aircraft fuels (aviation gasoline or jet fuel) and petroleum base lubrificating oils. PR 1782 class S is a three-part polysulfide liquid polymer.The mixed compound is of fluid consistency which can be applied by spray and 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.