METHOD OF COATING TUBULAR METAL MEMBERS

摘要

A method of forming coatings in coated tubular metal members which comprises coating a fluoro resin on a chromate layer of a tubular metal member previously applied with Zn-plating having such chromate layer at the outer circumferential surface; coating a primer to the coating surface of the fluoro resin; depositing a heat shrinkable tubular member or applying a sol lining treatment of a vinyl chloride resin to the coated primer layer; forming a layer by heat shrinking the tubular member by applying heat treatment or by completely geling the sol lining, thereby tightly adhering and laminating them.