Abstract

The invention relates to aqueous varnish-paint compositions having a high dispersibility which are used to obtain chemical-resistant and heat-resistant coatings by a cathodic electrodeposition method. The technical result of the invention is increased heat resistance, salt resistance and water resistance of the coating as well as high chemical resistance of the coating. A varnish-paint composition for obtaining thin coatings by a cathodic electrodeposition method comprises an aqueous emulsion of epoxy resin comprising a concentration of 36-38% by reference standard, 100% acetic acid, 2% aqueous solution of 3-(aminopropyl)triethoxysilane and demineralized water, having the following component ratio, g/l: 120-150 of aqueous emulsion of epoxy resin; 0.1-0.6 of 100% acetic acid; 5-50 of 2% aqueous solution of (3-aminopropyl)triethoxysilane; up to 1 l of demineralised water for the remainder.

IPC Classes  ?

• C09D 5/02 - Emulsion paints
• C09D 5/44 - Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes for electrophoretic applications
• C09D 5/46 - Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes for electrostatic or whirl-sintering coating
• C09D 163/00 - Coating compositions based on epoxy resins; Coating compositions based on derivatives of epoxy resins
• C09D 127/12 - Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Coating compositions based on derivatives of such polymers not modified by chemical after-treatment containing fluorine atoms
• C09D 127/20 - Homopolymers or copolymers of hexafluoropropene
• C09D 127/18 - Homopolymers or copolymers of tetrafluoroethene
• C09D 127/16 - Homopolymers or copolymers of vinylidene fluoride