FORMATION OF COATING FILM

摘要

PURPOSE:To obtain the titled coating film having excellent corrosion resistance and adhesivity in hot water environment, by coating an adherend with a coating film of a composition composed of a bisphenol-type epoxy polymer and a hardener and curing the coating film under specific condition in two steps. CONSTITUTION:The objective coating film can be formed by coating an adherend with a composition composed of (A) an epoxy polymer derived from bisphenols of formula (R1 and R2 are H or 1-3C alkyl) and (B) a hardener, keeping the formed coating film at a temperature near normal temperature for <72hr and preliminarily curing the film by contacting with the hot liquid of <60 deg.C.