CONTAMINATION PREVENTING METHOD FOR LAND STRUCTURE

摘要

PURPOSE: To prevent the adhesion of a contamination by applying a specified base coating on a land structure and drying and applying the coating containing a reactive curing type silicone resin on the base coating. ;CONSTITUTION: The base coating whose base resin is an epoxy resin and containing aminoalkoxy silane having ≥2 active hydrogen as a curing agent is applied on the land structure and dried. Then, the coating containing the reactive curing type silicone resin containing 50-99wt.% reactive curing type silicone resin and 1-50wt.% silicone resin expressed by the formula and having a hydroxyalkyl group or alkoxy group having 250-30000 number average mol.wt. and 20-50000 centistokes viscosity as a resin component is applied on the coated surface. In the formula, R is an aralkyl group, etc., R¹ is a divalent aliphat. hydrocarbon group, R² is hydrogen atom, etc., (x) and (y) is 0.01≤(x)≤3.99, 0.01≤(y)≤3.99, respectively and 0.02≤(x+y)≤4 is satisfied. In this way, the adhesion of a contamination is prevented over a long period.;COPYRIGHT: (C)1994,JPO&Japio