High performance Polyurethane Clearcoats for Automotive OEM

Abstract

The quality demands placed on automotive top coats have increased constantly in past years. Resistance to acid rain, scratch resistance, gloss and optical performance of the coating, both when new and after years of use, have come to the fore as the main functional properties.
Different two-pack and one-pack polyurethane systems have been evaluated for their contribution to scratch and mar resistance as well as acid etch resistance of the resulting automotive finish. Special attention was given to the aspect of ageing.