Polyurethane Construction Sealant 525 Gray 10.5 oz Cartridge Single Elastomeric Seal Metal Wood Plastic Fiberglass High-flex Weatherproof Joint Adhesive 24hr Cure 600% Elongation ShoreA25 Paintable

Gray 10.5 oz Polyurethane Construction Sealant 525
✔️ Single 10.5 oz cartridge; cures in 24 hr; 600% elongation; Shore A 25

This single 10.5 oz cartridge is a one-component polyurethane sealant that cures with atmospheric moisture into a flexible, high-elongation joint. It's typically used for sealing and bonding exterior trim, window frames, metal panels, plastic and fiberglass.

✅ Single-component polyurethane, moisture cure; bonds to many substrates
✅ Over 600% elongation, Shore A 25 for long-lasting flexibility
✅ Skin time ~2 hours with full cure around 24 hours for reliable handling
✅ Compatible with metal, wood, plastic and fiberglass; paintable and weatherproof
✅ Ideal for sealed joints, bonded assemblies and exterior repairs

💡 What is a polyurethane construction sealant used for in exterior joint sealing and repairs? A polyurethane construction sealant is a handy choice for forming flexible, durable seals and structural bonds in building and repair work. - Seals gaps and joints in window frames, trim, metal panels, plastic components and fiberglass components using high-elongation chemistry - Provides weatherproof, UV-resistant sealed joints suitable for exterior and interior applications and long-lasting repairs - Adheres well to a wide range of substrates for bonded assemblies and reliable adhesion in demanding conditions