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Fast Cure / Flight Line Repair

PR-2001 Class A Rapid Curing Fuel Tank Sealant

PR-2001 Class A is a rapid cure, low odor, aircraft integral fuel tank sealant. It has a service temperature range from -80°F (-62°C) to 320°F (160°C), with intermittent excursions up to 420°F (216°C). This material is designed for brush sealing of fasteners in fuel tanks and other aircraft fuselage sealing applications. The cured sealant maintains excellent elastomeric properties after prolonged exposure to both jet fuel and aviation gas.

PR-2001 Class A is a two-part, epoxy cured Permapol® P-3.1 polythioether compound. The uncured material is suitable for application by brush in thickness up to 25 mils. It cures at room temperature to form a resilient sealant having excellent adhesion to common aircraft substrates.



  • * Below is a partial specification list - for additional information - contact
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  • MM1081 - Class A-2, Type 2, Grade 1 - MITSUBISHI HEAVY INDUSTRIES

Packaging Options

PR-2001 Class A is supplied in Semkit® packages and pre-mixed and frozen Semco® cartridges.