Tensorgrip® H51 is a general purpose polystyrene adhesive designed for permanent bonding of slab insulation, such as expanded polystyrene, extruded polystyrene, PU & PI foams, as well as fibrous quilts and slab materials such as glasswool. H51 is suitable for bonding and laminating most insulation materials to themselves and to a variety of substrates, including MDF, chipboard, plywood and many other timber sheet materials.