PR-1440 Class B is an aircraft integral fuel tank sealant. It has a service temperature range from -65°C (-54°C) to 250°F (121°C), with intermittent excursions up to 275°F (135°C). This material is designed for fillet sealing of fuel tanks and other aircraft fuselage sealing applications. The cures sealant maintains excellent elastomeric properties after prolonged exposure to both jet fuel and aviation gas.
PR-1440 Class B is a two-part, manganese dioxide cured polysulfide compounds. The uncured material is a low sag, thixotropic paste suitable for application by extrusion gun or spatula. It cures at room temperature to form a resilient sealant having excellent adhesion to common aircraft substrates.
Application life and cure time @ 77°F (25°C), 50% RH
- Application life - 2
- Tack free time - <8
- Cure time to 35 A Durometer - 16
- AMS-S-8802 Rev.B Type II Class B2
- PPG-AFS 1910
- MSRR 9144 Issue 8
- MSRR 9144