CORAFOAM® Low density polyurethane and polyisocyanurate foams are rigid foams mainly used with thermal insulating purposes, thanks to their low thermal conductivity values and their high insulating power. Their insulating power is expressed at best in the cold chain rather than with hot temperatures, and polyurethanes and polyisocyanurate foams are suitable for many industrial uses, but not so much for building and houses insulation, for which they result not so effective in comparison to other cheaper materials.