| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a finishing agent which is for protecting a chemical conversion coating of a metal surface and is capable of imparting high corrosion resistance even to a thin film not containing chrome. <P>SOLUTION: As the finishing agent for surface treatment for protecting the surface of a metal chemical conversion coating, a silicon compound and a rare earth element are used, and a corrosion resistance improving effect is increased by the interaction of the substances used in a treatment. <P>COPYRIGHT: (C)2012,JPO&INPIT |
