⚓ Elevate your projects with buoyant, soundproof, and fast-expanding foam!
Fiberglass Supply Depot’s 4 lbs density 2-part polyurethane closed-cell foam offers 2 cubic feet of high-performance flotation, acoustic insulation, and structural fill. Designed for quick 45-second working time and full expansion in 5 minutes, it laminates safely with common resins and performs best at 75°-80°F, making it ideal for boat flotation, docks, soundproofing, and versatile craft applications.
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