PPG® PR-1422 B-2 PRC Fuel Tank Sealant is a two-part, dichromate cured polysulfide compound designed for integral fuel tank sealing in aircraft. It provides excellent elastomeric properties and durability against jet fuel and aviation gas, ensuring reliable performance in demanding conditions.
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Overview
PR-1422 Class B sealant is specifically formulated for fillet sealing of fuel tanks and other aircraft fuselage applications. The cured sealant maintains excellent elastomeric properties after prolonged exposure to fuels. 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 with excellent adhesion to common aircraft substrates. The sealant has a service temperature range from -65°F (-54°C) to 250°F (121°C), with intermittent excursions up to 275°F (135°C). The storage life of PR-1422 Class B is at least 9 months when stored in original, unopened containers at temperatures between 40°F (5°C) and 80°F (27°C).
Features & Benefits
Thermal rupture resistance for reliable performance
Low temperature flexibility at -65°F (-54°C) with no cracking, checking, or loss of adhesion
Corrosion resistance with no loss of adhesion or softening after immersion in salt water
Resistance to hydrocarbons for enhanced durability
Flexibility with no cracks after bending 180 degrees over a 0.125 inch (3.18 mm) mandrel
Repairable to itself, excellent for both freshly cured and fuel-aged fillets
Outstanding resistance to water, alcohols, petroleum-based and synthetic lubricating oils, and petroleum-based hydraulic fluids
Fungus resistant and non-nutrient
Specifications
Color: Part A - Black, Part B - Light Brown, Mixed - Brown
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Product information provided "as is", and Boeing may add, change, discontinue or remove product information at any time. Product photos may not be exact match to product delivered. Seeterms & conditions.
