Gun Grade Expanding Foam is a practical and reliable foam filler designed for sealing, filling and insulating gaps in construction, renovation and repair projects. Designed for use with a compatible foam gun, it allows for more controlled application, making it suitable for both trade and DIY use. This expanding foam is commonly used around window and door frames, pipe penetrations, gaps in walls, insulation areas, cavities and general building joints where filling and sealing are required. Once applied, the foam expands to help fill voids and improve insulation, draught resistance and sound reduction. Supplied in a practical canister size, Gun Grade Expanding Foam provides a cost-effective and dependable solution for filling, sealing and insulating gaps across building, maintenance and home improvement projects.