Polyurethane coatings are one of the fastest growing materials worldwide in the paints and coatings industry. Despite their relatively prohibitive cost, features such as their excellent durability, resistance to corrosion and abrasion, aesthetic value and structural flexibility make them ideal for a wide range of high-performance applications. In recent years the use of polyurethanes has increased by about 6 % annually and it is expected to continue to grow at the same rate. Polyurethanes are segmented polymeric materials with alternating hard and soft segments. The hard segment is formed by reacting isocyanates and polyols and is responsible for ...
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