Color plus clear composite coating having a catalyst-free base coat comprising polyepoxides and polyacid curing agents

摘要

There is disclosed herein a composite coating comprising a colored base coat over which is applied a clear top coat, the improvement comprising the base coat which comprises a liquid crosslinkable composition comprising a polyepoxide and a polyacid curing agent; said composition is characterized in that it is substantially free of a cure catalyst, and the top coat comprises a cure catalyst system in an amount sufficient to cure both the base coat and the top coat.