FINISH COAT COMPOSITION FOR CORROSION-RESISTANT COATING OF A METAL PART, WET-ON-WET METHOD FOR APPLYING A FINISH COAT, CORROSION-RESISTANT COATING OF METAL PARTS, AND COATED METAL PART
申请人:NOF METAL COATINGS EUROPE
公开号:US20200407567A1
公开(公告)日:2020-12-31
The present invention relates to a finishing composition for coating a metal part previously coated with a corrosion-resistant coating comprising at least a binder of alkylphenylsiloxane type, glass microbeads, and optionally filler particles with a high thermal resistance and/or particulate aluminum, said composition having a thixotropic index (ITh) greater than or equal to 3. The present invention also relates to a corrosion-resistant coating of a metal part, resistant to acids and bases, contributing to the good thermal resistance of the system and comprising at least two coats different from each other, the first coat being a base coat comprising at least water, a particulate metal and a binder, and the second coat being a finishing composition according to the invention. The present invention further relates to the wet-on-wet-type method for applying the corrosion-resistant coating according to the invention and to a metal substrate coated with a corrosion-resistant coating according to the invention.