Seal and insulate with Soudal Expanding Foam B3 Gun Grade, the ideal solution for general gap filling in construction. This moisture-curing, self-expanding polyurethane foam adheres to most building materials and provides excellent thermal and acoustic insulation. It offers a high gap-filling yield and is resistant to water, heat, and aging. Once cured, the foam can be easily cut, sanded, plastered, and painted, making it versatile for interior and exterior use. Perfect for filling and insulating around window and door frames, sealing roof constructions, and insulating pipes and electrical wiring. Experience precise application with a compatible gun for professional results. Key Features: * Fills and insulates holes, voids, gaps, and joints * Ideal for use around window and door frames * Adds insulation around pipes and electrical wiring * High gap-filling yield for efficient application * Excellent stability with no shrinkage or post-expansion * Can be sanded and painted over when cured * Provides high thermal and acoustic insulation * Suitable for interior and exterior use * Designed for precise application with a compatible gun * Good adhesion on most surfaces (excluding PE, PP, PTFE) Soudal Expanding Foam B3 Gun Grade 750ml, polyurethane foam, gap filler, insulation foam, construction foam, construction sealant.