2 Part Polyurethane Foam Liquid
A 2 part liquid foam when mixed together in equal parts can expand up to 25 times its original volume and set rigid. It is extremely buoyant. 1 cubic foot will support 27kg in water and will bond well to most materials. It should always be protected by a GRP skin because, although closed cell and water-proof when set. It will absorb water when crushed. 1kg of liquid foam = 1 cubic foot when expanded under conditions of 18°c. Lower temperatures produce less foam.