Seal gaps and improve insulation with the 00370 Wall and Cavity Foam Sealant, a professional-grade expanding foam designed to fill, seal, and insulate wall cavities and hard-to-reach spaces. This off-white foam expands to create a durable, airtight barrier that helps prevent air leaks, moisture intrusion, and energy loss.

Ideal for construction, renovation, and home improvement projects. Use it around wall openings, electrical penetrations, plumbing passthroughs, framing gaps, window and door cavities, and general voids. The fast-expanding formula adheres to most building materials including wood, concrete, metal, drywall, and masonry.

Perfect for contractors, DIY homeowners, and anyone looking to upgrade insulation performance and structural sealing.