| 摘要 |
<p>This protective coating on a metal surface, especially for aircraft bodies and the like, has, on a pickled metal surface which may be anodized in addition to being pickled, a bonding primer layer and a polyurethane primer layer, an intermediate layer which is easily dissolved and a top layer forming a finish coat on said intermediate layer which protects the primer layers when the top coat is removed for a new paint job.</p> |
