Polyurethane Expanding Foam Filler 500ml

This polyurethane expanding foam filler is a versatile adhesive and gap-filling solution designed for sealing, bonding, and insulating in construction, electrical, and general maintenance applications. The 500ml canister expands to fill cavities and voids, providing excellent adhesion to wood, metal, concrete, and most substrates while curing to a rigid, water-resistant foam. Ideal for electricians sealing cable entry points, builders filling wall cavities, and contractors needing a fast-setting, all-purpose filler.