Autoxidizable urethane resins

Though they represent the oldest family of binders for surface coatings, autoxidizable resin systems still are in wide use. The highest performing class within this family are those which are urethane modified. The improvement in physical properties imparted by this urethane modification are seen in their solvent resistance, hydrolysis resistance and superior abrasion performance. Since their first introduction in the 1950's solvent borne uralkyds have continued to improve and still have a dominant position in the do-it-yourself market. Recent advances in autoxidizable urethane resins have primarily been in waterborne technologies and applications. Uralkyds adapted to waterborne application and new polyurethane dispersions with drying oil modification are breathing new life into an established chemistry.