PR-1425 Class B is a low-sag, thixotropic paste sealant for aircraft windshields and canopies. It prevents crazing on acrylic and polycarbonate, curing at room temperature to a durable, flexible, weather-resistant seal from -65°F to 250°F.
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Boeing Distribution (formerly Aviall)
This product has been replaced by new Part # PR1425B2PT=5N
PR-1425-B2-PT is a two-part, dichromate-cured polysulfide sealant in a 1-pint kit with a 2-hour application time. The black, thixotropic paste cures at room temperature to a resilient, fuel-resistant, weatherproof seal, safe for sensitive acrylic and polycarbonate substrates.
Features & Benefits
Two-part, dichromate-cured polysulfide compound provides strong, durable seal
Low-sag, thixotropic paste ideal for fillet sealing on vertical surfaces
High resistance to UV and weather exposure ensures seal longevity
Prevents crazing on sensitive substrates like acrylic and polycarbonate
Wide service temperature range from -65°F to 250°F for diverse conditions
Durable, flexible seal for critical aircraft transparency components
Reliable adhesion on common aircraft substrates
2-hour application time allows precise application and positioning
Meets industry specifications ensuring flight safety and quality
Specifications
Series: PR-1425 Class B
Manufacturer: PRC-DeSoto (PPG Aerospace)
Container Size: 1 pint
Color: Black (Parts A and B)
Mixing Ratio (A:B): 10:100 by weight
Application Time: 2 hours (Class B-2)
Curing Time: 7 days at 77°F and 50% RH (full cure)
Service Temperature: -65°F to 250°F (-54°C to 121°C)
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.
