Acid-resistant paint for wood antique buildings in heavy industry environment, and preparation method and application method thereof

The invention discloses an acid-resistant paint for wood antique buildings in a heavy industry environment, which is composed of a first component and a second component in a mass ratio of 1:2-1:4. The first component comprises the following components in parts by mass: 90-120 parts of acrylic polyurethane water dispersion, 0.5-1.5 parts of thixotropic agent, 5-20 parts of water and 10-20 parts of acid-resistant agent. The second component comprises the following components in parts by mass: 2-8 parts of propylene glycol methyl ether acetate, 0.5-5 parts of dispersing agent, 0.2-0.8 part of defoaming agent, 10-30 parts of water, 10-40 parts of superfine talcum powder, 10-40 parts of kaolin, 10-30 parts of iron red and 0.8-1.2 parts of dimethyl methyl phosphonate. The invention also discloses a preparation method and application method of the acid-resistant paint for wood antique buildings in a heavy industry environment. The paint is suitable for external wall water/acid corrosion resistance construction and indoor water/acid corrosion resistance construction of wood antique buildings.