Gorilla Heavy Duty Expanding Foam 353 ml

Gorilla Heavy-Duty Expanding Foam is a fast-curing polyurethane foam designed for professional-strength filling, sealing, and insulation. Supplied in a 353ml can with a precision straw applicator, it expands to create a durable barrier against air, moisture, and pests. It is suitable for indoor and outdoor use, bonds to materials such as wood, metal, concrete, brick, PVC, plaster, and insulation, and is designed to fill gaps and seal joints effectively. The foam does not shrink, cures to a tack-free finish in 8–12 minutes, and can be trimmed after about 45 minutes. It is paintable and sandable to accommodate a DIY finish. For outdoor applications, the cured foam should be painted or coated to prevent potential discoloration caused by sunlight exposure.

Key features

• Fills gaps up to 2.5 cm
• No shrinkage
• Tack-free in 8–12 minutes
• Trim in 45 minutes
• Paintable and sandable
• Bonds to wood, metal, concrete, brick, PVC, plaster, insulation and more

Technical details

This multi-purpose foam is supplied in a 353ml can with a precision straw applicator and expands to create a durable barrier against air, moisture, and pests. It is suitable for sealing around windows and doors, filling gaps in attics, crawlspaces, masonry, plumbing, vents, ceilings, and walls, and bonds to common construction materials including PVC, brick, concrete, insulation materials, plaster, plastic, wood, and metal. It can be used indoors and outdoors, and excess foam can be trimmed or sanded for a neat finish. For outdoor use, ensure the cured foam is painted or coated to prevent potential discoloration from sunlight."