Polyester primer for building curtain wall aluminum veneer

Abstract

The invention belongs to the field of functional coatings, and particularly relates to a polyester primer for a building curtain wall aluminum veneer and a preparation method of the polyester primer for the building curtain wall aluminum veneer, and the polyester primer for the building curtain wall aluminum veneer comprises the following raw materials in parts by weight: 25-35 parts of saturated polyester resin; 4-6 parts of amino resin; 5-10 parts of modified hollow glass beads; 5-10 parts of modified talcum powder; 12 to 18 parts of titanium dioxide; 2.0 to 4.0 parts of vinyl chloride-vinyl acetate resin; 0.2 to 0.5 part of a dispersant; 0.1 to 0.3 part of an anti-settling agent; 0.1 to 0.2 part of a defoaming agent; 10 to 15 parts of an S-150 solvent; the balance of ethylene glycol butyl ether; the saturated polyester resin and the amino resin are both calculated by solid parts; the components are subjected to a paint preparation process, a spraying process, baking and curing to obtain the polyester primer for the aluminum veneer of the building curtain wall. According to the polyester primer for the building curtain wall aluminum veneer, through formula design and matching with the modified filler, the problems that in the prior art, primer for the aluminum veneer is poor in adhesive force, prone to falling off and poor in corrosion resistance in the using process can be effectively solved.