Marking paint of alcohol acid system and preparation method of marking paint

The invention discloses a marking coating of an alcohol acid system. Comprising the following raw materials in parts by weight: 30-40 parts of alkyd resin, 8-12 parts of petroleum resin, 8-12 parts of chlorinated rubber resin, 10-20 parts of calcium carbonate, 10-20 parts of barium sulfate, 10-20 parts of talcum powder, 15-20 parts of rutile titanium dioxide, 1-2 parts of a dispersing agent, 0.5-0.7 part of a defoaming agent, 0.1-0.3 part of a flatting agent, 0.5-1 part of a drier, 0.4-0.8 part of an anti-skinning agent, 0.2-0.3 part of a base material oil-resistant agent, 10-15 parts of xylene and 2-5 parts of a solvent. The invention also discloses a preparation method of the marking paint. The coating is high in construction adaptability and can be subjected to brush coating, roll coating, air spraying or airless spraying, and the wear resistance, water resistance and alkali resistance of the coating can meet the construction requirements; and a painted paint film is durable in hardness, high in compressiv