SURFACE PREPARATION PROCESS

摘要

PROBLEM TO BE SOLVED: To provide a surface preparation process with the working environment improved which is harmless to the natural environment, and further has reduced generation of dust and noise for performing recoating after the peeling of old coating films and the removal of an oxide film to a building steel structure or the like. SOLUTION: Regarding the surface preparation process for removing an oxide film and old coating films such as an organic film and an inorganic film which does not require blast treatment, the process comprises: a stage where a coating film infiltration softener is applied to the surface of the old coating films; a stage where the old coating films are peeled and removed together with the coating film infiltration softener; a stage where the surface of the metal base material freed of the old coating films is coated with a black skin removing agent; and a stage where the oxide film is removed together with the black skin removing agent. COPYRIGHT: (C)2009,JPO&INPIT