Den Braven B3 Filler Foam is a single-component polyurethane foam designed for sealing, insulating, and filling in both residential and commercial construction. It expands upon application to form a durable, airtight, and moisture-resistant barrier, making it ideal for a wide range of building materials and structural joints.

Key Features

• Expanding Action – Fills cavities, cracks, and gaps with excellent adhesion

• Seals & Insulates – Provides thermal and acoustic insulation while resisting moisture

• Multi-Surface Compatibility – Bonds to wood, concrete, brick, metal, plaster, and plastics

• Paintable & Sandable – Once cured, it can be trimmed, sanded, and painted for a clean finish

• 750ml Canister – Offers generous coverage for multiple applications

• Application Type – Handheld or gun-grade options available depending on variant

Typical Uses

• Filling gaps around window and door frames

• Sealing pipe penetrations and wall cavities

• Insulating partition walls, ceilings, and floor joints

• General-purpose gap filling in DIY and professional projects