Polyurethanes (PUR) are plastics resulting from a polyadditional reaction of polyisocyanates with polyols and are either hard and porous or soft and elastic depending on its production. Different kinds of PUR are needed for reactive, thermally activated, hot melt, dispersion, and solvent-borne adhesives. These adhesives are for example used to bond car front spoilers, sandwich constructions, and facade elements, to glue metal brackets, or to seal electronic casings. PUR Sealants are ... Read more