ARTICLE COATED WITH CORROSION-RESISTANT COLORED FLUORORESIN

摘要

PROBLEM TO BE SOLVED: To provide an article coated with a corrosion-resistant colored fluororesin which article is produced by forming on a metal substrate a fluororesin coating film colored with an inorg. pigment, is excellent in peeling strength of the coating film, and hardly exhibits defects (e.g. pinholes) in the coating film. SOLUTION: This article is obtd. by forming on a metal substrate a coating film from a fluororesin compsn. contg. a fluororesin and an inorg. pigment. The fluororesin comprises higher than 90wt.% but not higher than 98wt.% polytetrafluoroethylene(PTFE) and 2wt.% or higher but lower than 10wt.% thermally meltable fluororesin in the form of fine particles contg. 50wt.% or lower particles having sizes of 5μm or higher. The inorg. pigment is contained in an amt. of 2-15wt.% based on the solid content of the fluororesin compsn. The coating film formed has such characteristics that an average thickness is 5-50μm, that a 180 deg. peeling strength is 1.5kg/cm or higher, and that the electric current passing through pinholes under a voltage of 10V/5sec is 0.12mA/cm<2> or lower.