| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a paint pretreatment agent for coating-type paint, capable of achieving a coating film excellent in adhesion strength, salt water resistance, and impact resistance, when forming the coating film by means of the coating-type paint on a metal substrate surface subjected to coating pretreatment, and a coating-type painting method. <P>SOLUTION: The paint pretreatment agent for the coating-type paint contains (A) one or more metal elements selected from a group consisting of zirconium, titanium and hafnium, (B) fluorine, (C) one or more coupling agents selected from an amino group-containing silane coupling agent, a hydrolyzate thereof, and a polymer thereof, and (D) a component comprising at least one of allylamine and polyallylamine, and the mass ratio (C/D) of the coupling agent (C) to the component (D) is 1 or greater. The coating-type painting method includes a chemical treatment step in which the paint pretreatment agent is used to chemically treat a metal substrate, and a coating-type painting step in which the chemically treated metal substrate is coated with the coating-type paint. <P>COPYRIGHT: (C)2013,JPO&INPIT |
