Epoxies and Urethanes-Changing Times Breed New Products

This paper reviews several new epoxy and urethane products and bonding processes developed in response to recent power and materials shortages, price increases, and new worker safety or environmental protection legislation. These new developments include MOCA and TDI-free urethane elastomers, low-solvent liquid epoxies, new epoxy powder coatings, epoxy seam filler to replace lead on passenger car bodies, and high speed, on-line, cure and fixturing methods. Each of these new products or processes represents an important advance in addition resin curing agent technology.