| 摘要 |
PURPOSE:To make possible a sanitary and sure cleaning operation by coating a strippable resin coating paint on a leak inspecting material and stripping away the leak inspecting material together with the strippable resin paint, upon drying, thereby making cleaning. CONSTITUTION:The strippable resin paint prepd. by dissolving, for example, a vinyl chloride resin into a toluene is coated by brushing, etc. on the leak inspecting material consisting of bromophenol blue and after the resin paint dries, the pulverous powder of the leak inspecting material is stripped away together with the resin paint to make cleaning. The sanitary operation is thus made possible without producing dust and the sure cleaning is made possible without any residue. |
