| 摘要 |
The present invention provides a process for forming a multi layered coated film having good finished appearance. The present invention relates to a process for forming a multi layered coated film comprising the steps of conducting electrodeposition coating with a cationic electrodeposition coating composition on a substrate, and then heating and curing it to form an cured electrodeposition coated film on the substrate, applying an intermediate coating composition on the cured coated film to form an uncured intermediate coated film, applying a base top coating composition on the uncured intermediate coated film to form an uncured base coated film, applying a clear top coating composition on the uncured base coated film to form an uncured clear coated film, and simultaneously heating and curing the three uncured coated films, wherein the cured electrodeposition coated film has specified ranges of Ra and Pa; or has specified ranges of Tg and crosslinking density.
|
