This is a two part mix expanding RIGID Polyurethane foam. Use to pack in cavities in wire sculptures or to create your very own contemporary art piece. When cured, it canbe shaped or cut with a hand saw or sharp knife. As a guide 20ml of mixed GPF32 foam expands to 15 x the volume. Foam expands 10 1 to 3 minutes. Can be coloured once dry with acrylic paint. Gloves must be worn when using this product.