| 摘要 |
<p>Flexible basecoat/clearcoat coating systems which have excellent adherence to metal and plastic substrates and possess superior weathering properties. The clearcoat composition comprises hydroxy-containing urethane modified polyester, made by reacting a urethane modified diol with polyol and diacid component, and crosslinking agent. The crosslinking agent of the pigmented basecoat composition comprises amine-aldehyde crosslinking agent. The crosslinking agent of the clearcoat comprises polyisocyanate crosslinking agent. Optionally, either or both compositions may comprise a high molecular weight linear polyurethane.</p> |
