A two‑part, low‑sag polysulfide windshield and canopy sealant designed for sealing glass, acrylic, and polycarbonate surfaces, offering strong adhesion, UV resistance, and wide temperature durability.
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Boeing Distribution (formerly Aviall)
This product has been replaced by new Part # PR1425B1-2-5=5N
WARNING: This product can expose you to chemicals including CARBON BLACK (AIRBORNE, UNBOUND PARTICLES OF RESPIRABLE SIZE [= 10 MICROMETERS]), CHROMIUM (HEXAVALENT COMPOUNDS), N,N-DIMETHYLACETAMIDE and SILICA, CRYSTALLINE (AIRBORNE PARTICLES OF RESPIRABLE SIZE) which is [are] known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.
Overview
PPG PRC‑DeSoto PR‑1425 Class B1/2 is a high‑performance windshield and canopy sealant specially formulated for aircraft transparency sealing. This two‑part, dichromate‑cured polysulfide compound provides excellent adhesion to prepared glass, acrylic, polycarbonate, and other common aircraft substrates while avoiding crazing of sensitive materials. The uncured material is a low‑sag, thixotropic paste suitable for application by extrusion gun or spatula. Once cured, it forms a durable, weather‑resistant seal capable of withstanding temperatures from -65°F to 250°F, with intermittent exposure up to 275°F. The sealant resists UV degradation and provides dependable performance in demanding aircraft environments.
Features & Benefits
Two-part polysulfide formulation for strong, durable sealing
Low-sag thixotropic paste ideal for fillet sealing applications
Will not craze acrylic or polycarbonate substrates
Excellent resistance to UV and weather exposure
Wide service temperature range from -65°F to 250°F
Suitable for extrusion gun or spatula application
Provides reliable adhesion to common aircraft transparency materials
Specifications
Container Size: 2.5 oz kit
Color: Black (Part A/B)
Form: Liquid (Part A), Solid (Part B)
Mixing Ratio: 10:100
Application Time: 30 minutes (B‑1/2)
li>Curing Time: 7 days
Service Temperature Range: -65°F to 250°F (up to 275°F intermittent)
DISCLAIMER: Product information provided “as is.” Boeing may add, change, discontinue or remove this information at any time. Product photos may not be exact match to product delivered. Seeterms & conditions.
