Bottom surface universal type alkyd antirust paint and preparation method thereof

The invention discloses bottom surface universal type alkyd antirust paint. The bottom surface universal type alkyd antirust paint is prepared from the following components in parts by weight: 25 to 50 parts of alkyd resin, 10 to 20 parts of C9 petroleum resin, 0.4 to 1.5 parts of an anti-settling agent, 0.6 to 1.5 parts of a dispersant, 5 to 25 parts of pigment, 20 to 40 parts of filler, 0.5 to 3 parts of a drier, 0.5 to 2 parts of an anti-skinning agent and 5 to 15 parts of a diluent. The invention further discloses a preparation method of the bottom surface universal type alkyd antirust paint; the preparation method comprises the main steps of adding the raw materials in sequence and uniformly mixing. The bottom surface universal type alkyd antirust paint provided by the invention can be used as a primer and can also be used as finish paint and can dry rapidly; hard dry time is reduced to 4 hours from original 12 hours, and a construction period can be shortened; the hardness, mechanical property and brightness-keeping and color-keeping performance are all greatly improved. The preparation method is simple to operate and is suitable for large-scale industrial production.