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🚤 Float, Fill, and Finish Like a Pro — Foam That Works as Hard as You Do!
Fiberglass Supply Depot’s 4 lb density expanding pour foam is a two-part polyurethane closed-cell liquid foam designed for superior flotation, soundproofing, insulation, and void filling. This quart kit mixes equal parts of Part A and B to produce ½ cubic foot of foam that cures in just 5 minutes. Engineered for marine and industrial use, it withstands water exposure and can be laminated with various resins, making it a versatile solution for professionals seeking reliable, fast-curing foam with excellent buoyancy and durability.










| ASIN | B08T255GS5 |
| Best Sellers Rank | #21,150 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #52 in Urethane Adhesives |
| Brand Name | Fiberglass Supply Depot |
| Color | Black, Clear, Yellow |
| Compatible Material | Vinyl |
| Container Type | Bottle |
| Customer Reviews | 4.4 4.4 out of 5 stars (148) |
| Full Cure Time | 5 Minutes |
| Item Form | Liquid |
| Item Package Quantity | 1 |
| Manufacturer | Fiberglass Supply Depot Inc. |
| Material Type | Foam,Resin |
| Number of Pieces | 2 |
| Other Special Features of the Product | Versatility |
| Part Number | poly4lbqk |
| Specific Uses For Product | Floating Decoy, Taxidermy |
| UPC | 819794022897 |
| Unit Count | 64.0 Ounce |
| Viscosity Level | Medium to High |
| Volume | 1 Quarts |
| Water Resistance Level | Waterproof |
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