The elastic Fischer 1K Pistol Foam PUP FLEX 750 B2, with high soundproofing and thermal insulation properties, is particularly suitable for year-round insulation and filling of window connection joints, roller shutter boxes, and window sills, as well as for the elastic foaming of connection joints and cavities in wooden structures and roof extensions. Its high elasticity allows it to accommodate component movements without the formation of thermal bridges or cracks. The product can be safely processed at temperatures ranging from -10 °C to +35 °C. Its excellent shape stability during curing avoids time-consuming and costly rework. The PUP FLEX 750 B2 is equipped with a safety valve that provides maximum protection against premature adhesion. Protective gloves for end users are included.