Waterproof coating for building external wall

Abstract

The invention discloses a waterproof coating for a building external wall. The waterproof coating is characterized by being prepared from the following raw materials in parts by weight: 40 to 80 parts of acrylate emulsion, 25 to 30 parts of ethylene-vinyl acetate copolymer emulsion, 3 to 6 parts of modified hydroxypropyl methyl cellulose, 0.5 to 2.2 parts of polydimethylsiloxane, 2 to 10 parts of cotton flock, 10 to 25 parts of precipitated calcium carbonate, 5 to 15 parts of asbestos powder, 4 to 6 parts of ethylene glycol monovinyl ether, 3 to 5 parts of 2-hydroxypropyl cellulose, 1 to 2 parts of a fungicide, 1 to 2 parts of an anti-precipitant, 1 to 2 parts of ammonia water and 50 to 100 parts of water. The waterproof coating for the building external wall, disclosed by the invention, is good in waterproof performance, excellent in mechanical property and long in service life.

Description

technical field [0001] The invention relates to the technical field of exterior wall coatings, in particular to a waterproof coating for building exterior walls. Background technique [0002] At present, paint is often painted on the surface of building exterior walls to improve the high temperature resistance and corrosion resistance of the wall surface, prolong its service life, simple and effective, and low cost. Traditional acrylic paints have higher requirements on the surface of building exterior walls. In some In harsh environments, the waterproof and mechanical properties of acrylic coatings cannot meet the requirements for the use of building exterior walls. Traditional acrylic coatings cannot meet the requirements of the above fields. How to prepare a building exterior with good waterproof performance, excellent mechanical properties and long service life? Acrylic paint for walls has become a technical problem that needs to be solved at present. Contents of the i...

AI Technical Summary

Problems solved by technology

[0002] At present, paint is often painted on the surface of building exterior walls to improve the high temperature resistance and anti-corrosion performance of the wall surface, prolong its service life, simple and effective, and low cost. Traditional acrylic paints have higher requirements on the surface of building exterior walls. In some In harsh environments, the waterproof and mechanical properties of acrylic coatings cannot meet the requirements for building exterior walls. Traditional acrylic coatings cannot meet the requirements of the above fields. How to prepare a building exterior with good waterproof performance, excellent mechanical properties and long service life? Acrylic paint for walls has become a technical problem that needs to be solved at present