The invention belongs to the field of building materials, and relates to
environmental protection paint for a building exterior wall. The
environmental protection paint comprises the following components in part by weight: 10-15 parts of water, 40-50 parts of hand feeling filler, 15-20 parts of
quartz sand, 8-13 parts of
silicon substrate active glue, 6-9 parts of
putty, 12-18 parts of diphenyl
guanidine, 2-5 parts of hydroxyethylmethylcellulose, 2-4 parts of
zinc stearate, 1-3 parts of organic
zirconium complex, 3-5 parts of
dimethylaniline, 4-7 parts of tetramethylolmethane, 3-6 parts of modified floating bead, and 1-3 parts of texture particle;
putty is composed of A and B components according to the
mass ratio of 50: 1-5, wherein A component includes 10-15 parts of
polymer powder, 1-3 parts of polycarboxylic
ammonium salt, 3-5 parts of
silicone acrylic
emulsion, 20-30 parts of heavy coarse whiting, 3-10 parts of talcum
powder, 10-15 parts of lightweight
clay brick, 5-10 parts of
perlite, 3-6 parts of high-
alumina cement, 4-6 parts of dispersible latex
powder, 10-15 parts of composite suspension liquid formed by aluminum
oxide sol and
silicon dioxide soil according to the
mass ratio of 1: 1; B component is 15-20 wt% of acrylic
emulsion. The
environmental protection paint is excellent in water-retaining property, high in
caking property, good in alkali resistance, and safe and environment-friendly.