PPG AEROSPACE PR1440 B1/2 GRAY AMS-S-8802D TYPE 2, CLASS B-1/2 SPEC FUEL TANK SEALANT - 6 OZ 654-SEMKIT

PPG Aerospace® PR1440 B1/2 Gray is a manganese dioxide–cured polysulfide sealant engineered to AMS-S-8802D Type 2, Class B-1/2 for rapid application in fuel tank assembly and structural sealing. Supplied in a 6 oz 654-SemKit, it offers a controlled work life that supports efficient tooling on production lines and maintenance operations. Once cured, it develops strong adhesion to common aerospace substrates such as aluminum, composites, and coated surfaces, maintaining elasticity and leak protection under vibration, pressure differentials, and thermal cycling. Its resistance to jet fuel, oils, hydraulic fluids, and environmental exposure ensures reliable performance in integral tanks, fuselage interfaces, and pressurized cabins across commercial, military, and rotorcraft platforms.