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PR-2007 Class C Low Weight Fuel Tank Sealant. PPG Aerospace® Sealants
PR-2007 Class C is a low density, high temperature aircraft integral tank sealant. It has a service temperature range -65°F (-54°C) to 250°F (121°C), with intermittent excursions up to 360°F (182°C). This material is designed for brush sealing of fuel tanks and other aircraft fuselage sealing applications. It offers as much as a twenty percent weight savings, per unit volume, over traditional sealants used for these purposes. The cured sealant maintains excellent elastomeric properties after prolonged exposure to aircraft fuels, (both jet fuel and aviation gas) and will resist limited contact to diphosphate ester based hydraulic fluids. PR-2007 Class C is a two-part, manganese dioxide cured modified polysulfide. The uncured material is a roller grade liquid suitable for application by brush, extrusion gun or spatula. It cures at room temperature to form a resilient sealant having excellent adhesion to common aircraft substrates.
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