Middle coating for vehicle furnace drying

Abstract

The invention relates to an automobile drying primer surfacer. Amino resin is taken as a crosslinking agent to have crosslinking reaction with resin with hydroxyl, such as alkyd resin, polyester resin, epoxy resin, acrylic resin, etc., and the primer surfacer which has the advantages of high hardness, good adhesion, firm interlayer bonding, good excessive roasting, good decorativeness, wear resistance, gloss retention, good color retention and low cost is processed and produced through re-mixing the alkyd resin, the epoxy resin and the amino resin according to the mechanisms of condensation, polymerization, curing and film formation; the automobile drying primer surfacer is characterized in that 15 portions to 25 portions of amino resin, 19 portions to 21 portions of polyester resin, 2.7 portions to 2.9 portions of epoxy resin, 25 portions to 35 portions of alkyd resin, 16 portions of 26 portions of pigment and filler and 2 potions to 7 portions of diluent are re-mixed; and then a promoter in a certain proportion is added in; finally the automobile drying primer surfacer is obtained.

Description

technical field [0001] The invention relates to the field of chemical industry, in particular to an intermediate coating for automobile drying. Background technique [0002] Paint is a supporting engineering material that is coated on the surface of an object (to be protected and decorated) and can firmly adhere to a continuous film. Whether the main film-forming substance of the paint is composed of grease and polymer materials (resin), non-volatile The active diluent also belongs to the film-forming substance, which is the main substance for the paint to firmly adhere to the surface of the object to be coated to form a continuous film. It is the basis of the paint and plays a decisive role in the physical and chemical properties of the paint. The primer coating requires good adhesion, strong antirust ability, and strong combination with the topcoat. The topcoat coating requires good decoration, acid resistance, alkali resistance, wear resistance, high temperature resistanc...

AI Technical Summary

Problems solved by technology

The primer coating requires good adhesion, strong antirust ability, and strong combination with the topcoat. The topcoat coating requires good decoration, acid resistance, alkali resistance, wear resistance, high temperature resistance, and good insulation; Paint and topcoat are firmly combined, and have good adhesion, h