Sealant Pint Kit

PPG Aerospace PRC‑DeSoto PR‑1425 Class B is a high‑performance aircraft windshield and canopy sealant formulated for sealing glass, acrylic, polycarbonate, and other aircraft substrates. Its dichromate-cured, thixotropic composition delivers excellent adhesion while preventing crazing of sensitive materials.
This low‑sag paste applies easily with an extrusion gun or spatula and cures into a durable, weather-resistant seal capable of handling temperatures from -65°F to 250°F, with intermittent exposure up to 275°F. Designed specifically for aerospace environments, it offers long-term reliability and resistance to UV degradation.

• Part Number: PR1425B1-2PT
• Container Size: 1 pint kit
• Color: Black (Part A/B)
• Form: Liquid (Part A), Solid (Part B)
• Mixing Ratio: 10:100
• Application Time: 30 minutes (B‑1/2)
• Curing Time: 7 days
• Service Temperature Range: -65°F to 250°F (275°F intermittent)
• Specific Gravity: 1.41 (Part A), 1.34 (Part B)
• Viscosity: >21 cSt (Part A)
• VOC Content: 454 g/L (Part A)
• Flash Point: 93.33°C (Part A/B)
• Boiling Point: >37.78°C (Part A)
• Shelf Life: 9 months
• Domestic/Import: Domestic
• Composition (Part A): 20–39% N,N‑Dimethylacetamide, 20–26% Sodium Dichromate Anhydrate, 5–10% Calcium Dichromate, 1–5% Kaolin, <1% Carbon Black, <1% Crystalline Silica
• Composition (Part B): 5–10% Calcium Carbonate, 5–10% Carbon Black, 1–5% Epoxy Resin, 1–5% Terphenyl Hydrogenated
• Application Methods: Extrusion gun or spatula

Technical Information

• FMS‑3065 – Class B‑1/2, ‑2 (Lockheed – Fort Worth)
• GAC146BH – B‑1/2, ‑2 (Gulfstream)
• MEP 09‑037 – B‑1/2, ‑2 (Embraer)
• MFM0027 – Type B‑1/2, ‑2 (Mitsubishi Heavy Industries)