The Everbuild Gun Grade Expanding Foam Filler 700ml is a high-yield, polyurethane-based expanding foam engineered for general-purpose filling, sealing, and insulating tasks in construction and property maintenance. Designed for professional builders, installers, and tradespeople, it provides a reliable solution for bridging gaps around window and door frames, insulating pipework, and sealing voids in brickwork and concrete.
 
Formulated to expand rapidly upon contact with atmospheric moisture, this aerosol foam cures into a semi-rigid, closed-cell cellular structure that effectively blocks drafts, moisture, and sound transmission. Its controlled expansion rate ensures that cavities are filled thoroughly without putting excessive pressure on surrounding framework, and once fully cured, it can be easily cut, trimmed, sanded, or painted over.
 
Supplied in a 700ml pressurized canister optimized for use with a standard professional foam applicator gun, it allows for precise bead application and minimizes product waste on-site. It serves as an essential, cost-effective trade consumable for rapid thermal insulation and void-filling across a wide variety of building projects.
 
Suitable materials: Most building materials, apart from polythene, polypropylene, polystyrene and similar sensitive surface