Packaging Systems® PR-1422 Class B Fuel Tank Sealant 6oz 654 Semkit® PR1422B1-2

PR-1422 Class A - B is a sealant for use in integral fuel tanks in aircraft. It has a service temperature range of -65°F (-54°C) to +250°F (+121°C), with intermittent excursions up to +275°F (+135°C). PR-1422 Class A is designed for brush sealing of fasteners in fuel tanks and other sealing applications in the fuselage of the aircraft. PR-1422 Class A when cured, exhibits excellent elastomeric properties after prolonged exposure to jet fuel and aviation gas. PR-1422 Class A is a two-part, dichromate cured polysulfide composition. The uncured form is suitable for brush application in thickness up to 25 mils. Upon being cured at room temperature, it forms a resilient sealant with excellent adhesion properties to the common aircraft substrates.

The following tests are performed in accordance with the AMS-S-8802 Class A specification test methods.