PPG PR-1428 B-1/2 DARK RED BMS 5-37K TYPE I, CLASS B-1/2 SPEC ACCESS DOOR AIRCRAFT SEALANT - PINT

PPG Aerospace PRC DeSoto PR-1428 B-1/2 Pint Kit is a lightweight, two-component polysulfide sealant engineered for sealing aircraft fuel tanks, fuselage structures and pressurized areas where rapid application and tooling are essential. Its manganese dioxide curing system delivers strong adhesion to common aerospace substrates such as aluminum alloys, composites and coated surfaces, while preserving elasticity under vibration, thermal cycling and structural movement. The Class B-1/2 work life supports efficient OEM assembly and MRO seal-repair tasks, and once cured it resists prolonged exposure to jet fuels, hydraulic fluids, oils, de-icing agents and environmental extremes. Designed to retain sealing integrity at both low and elevated temperatures, it ensures durable protection in commercial, military and regional aircraft operations.