Soudal Gap Filling Expanding Foam – 500ml Soudal Gap filling expanding foam is a PU-based insulation and filling expanding foam which forms a permanent airtight and waterproof bond to practically all building materials such as brick, concrete, PVC, timber, insulation materials, pipes , cables, ducts, metals and many other plastics (except PP, PE, PTFE and silicone). Excellent adhesion on most substrates (except Teflon, PE and PP)High thermal and acoustical insulationVery good filling capacitiesExcellent mounting capacitiesExcellent stability (no shrink or post expansion22L Triple ExpansionDescriptionPU-based insulation and filling expanding foam which forms a permanent, airtight and waterproof bond to practically all building materials. Expands to the volume of 22 litres and is moisture curing, water resistant, excellent thermal insulator.ApplicationsIdeal for quick and easy filling of gaps, joints, holes, pipe penetrations. Perfect for improving thermal and acoustic insulation and eliminating drafts or thermal bridges. Does not affect most building materials including electric cables. Can be cut, sanded, painted, plastered or covered with sealant when cured.