| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a method for easily visually testing the presence of a primer (layer) after performing primer coating and a color primer composition for use in the method, and particularly, to provide a testing method for easily visually determining whether or not a primer is coated in a peeled portion caused after applying a sealant or a waterproof material. <P>SOLUTION: A color primer composition comprises a binder resin (A) and a coloring compound (B) showing a coloring property through a chemical reaction with hydrogen ions. A method for testing a primer layer, which is employed in sealing structure or waterproof structure in which a primer layer of the color primer composition is formed as a base and a sealant layer or a waterproof layer is formed thereon, comprises a step of visually checking the presence of a primer layer by applying a coloring agent (C) for coloring the color component (B) onto a prescribed portion of the sealing structure or the waterproof structure. <P>COPYRIGHT: (C)2012,JPO&INPIT</p> |
