Adhesive Polyurethane

Polyurethane (PU or PUR for short) is not a single material with a fixed composition, but instead a range of chemicals sharing similar chemistry. It is a polymer composed of organic chain units joined by urethane or carbamate links. Most polyurethanes are thermosetting polymers & do not melt when heated unlike thermoplastic polyurethanes which do.
Adhesives-09
Adhesives-09