Moisture curing, polyurethane expanding foam, specifically developed for filling gaps around roofing and insulation materials. Can be cut, sanded, plastered and painted once fully cured. Offers excellent thermal and acoustic insulation values and high gap filling yield. It is resistant to water, heat, and ageing. The Genius Gun applicator allows for accurate trigger control, one-handed application, and the foam is reusable for up to 6 weeks. Suitable for interior and exterior use.