Prime coat, floating coat and topcoat three-in-one inorganic anti-corrosive paint

Abstract

The invention discloses a prime coat, floating coat and topcoat three-in-one inorganic anti-corrosive paint, which is prepared from the following components in parts by weight: 20-40 parts of lithium silicate, 10-20 parts of silica sol, 1-10 parts of pigment, 15-20 parts of titanium dioxide, 20-40 parts of quartz powder, 5-20 parts of barite, 5-10 parts of zinc oxide, 1-5 parts of rare earth, 0.1-0.5 parts of a flatting agent, 0.1-0.3 parts of a dispersing agent, 0.1-0.2 parts of a wetting agent, 0.1-0.2 parts of a defoaming agent and 15-20 parts of a curing agent. The formula is optimized, the formula is completely designed by adopting inorganic materials, the rust removal requirement on a base material is low during use, the construction requirement can be met only by manually polishing and removing rust at the St2 level, the construction has no requirement on environment humidity, and the construction condition is wide.

Description

technical field [0001] The invention belongs to the technical field of chemical coatings, and relates to an anti-corrosion coating, in particular to a three-in-one inorganic anti-corrosion coating of primer, intermediate coating and top coating. Background technique [0002] Anti-corrosion coatings usually consist of three parts: the first layer is a primer applied to the metal surface to enhance the adhesion between the metal and the paint; the second layer is a filler paint to increase the thickness of the coating. Commonly used materials include coal tar enamel, petroleum pitch, epoxy resin, polyolefin coating, etc. In recent years, the latter two are used more abroad; the third layer is top coating to maintain a certain chroma and brightness. Maintain the color consistency, luster and beauty of the surface. [0003] This three-layer coating will lead to higher cost of coating materials and higher construction cost, and it is prone to delamination among the primer, middl...

AI Technical Summary

Problems solved by technology

[0003] This kind of three-layer coating will lead to higher cost of coating materials and higher construction cost, and it is prone to delamination between primer, middle coat and top coat, which will affect the integrity of the coating and lead to unsatisfactory anti-corrosion effect

The number of layers also means the number of coatings, the labor cost will be very high, and the existing three-layer coating technology has very high requirements for metal surface rust removal, environmental humidity, and coating intervals. The anti-corrosion effect of on-site construction is not good, and it is difficult to meet on-site anti-corrosion. Require

[0004] Because traditional anti-corrosion coatings are organic materials, it is difficult to resist ultraviolet damage and air oxidation

Therefore, the coating is easily damaged, resulting in discoloration, cracking, and short service life