Polyurethane Expanding Liquid Foam 2 Gallon Kit, 4 Lb Density 2 Part Marine Foam, 1 Gallon Each Part A and Part B, Made in the USA

2-PART EXPANDING FOAM: This two-part polyurethane foam expands quickly upon mixing, filling voids, hulls, and hollow cavities with a rigid, closed-cell structure. 4 LB DENSITY: A 4 Lb density offers a balance of structural strength and buoyancy, suitable for marine flotation, void fill, and insulation applications appropriate to the rating. COMPLETE 2 GALLON KIT: Contains 1 gallon each of part A and part B, providing accurate, pre-measured quantities for consistent mix ratios directly from the kit. MARINE AND STRUCTURAL USE: Designed for boat flotation, transom fill, pontoon foam, void packing, and general insulation where rigid closed-cell foam is needed. MANUFACTURED IN THE USA: Produced in Saint Petersburg, Florida, supported by over 60 years of expertise in marine and composite coatings