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Peter Caley - Covestro Pty Ltd

Polyaspartic Urethane Coatings – Reducing Cost and Improving Painting Throughput

Authors: Ahren Olson and Todd Williams, Covestro LLC

Two-coat polyaspartic urethane coatings have been used to protect steel structures for well over a decade now. Polyaspartic urethane coatings combine the inherent benefits of both epoxy and polyurethane coatings into a single high build UV-resistant coating. The high build nature of these coatings allows for the reduction in the number of coating layers from three to two, creating significant value for both the contractor and owner. Studies have shown that the application of these fast throughput systems to save Departments of Transportation (DOTs) up to 20% on field repainting costs, while also allowing completion of the job 31% faster than a three-coat zinc/epoxy/urethane system. This paper will discuss several topics including a brief overview of polyaspartic technology, cost and throughput advantages, 3rd party accelerated testing and real world field performance.

Peter Caley is currently a Sales Manager for Covestro Pty Ltd (previously Bayer Material Science), based in Melbourne. Peter is responsible for sales of Covestro polyisocyanates, polyols and other raw materials for the surface coatings industry. He has been involved in the surface coatings industry for more than 27 years in his role with Covestro/Bayer and earlier with Ciba Geigy, Ciba Specialty Chemicals and Huntsman, in both NZ and Australia.