Quick-drying preservative and preparation method thereof

The invention provides a quick-drying preservative and a preparation method thereof. The preparation method specifically comprises the following steps: S1, mixing styrene-butadiene latex with slaked lime, and stirring at a high speed to obtain an alkaline latex mixed solution; s2, adding iron oxide red powder into the alkaline latex mixed solution, and fully stirring at a medium speed to obtain a mixed system; and S3, adding the sand powder into the mixed system, uniformly stirring at a medium speed, finally adding the thickening agent, and stirring, thereby obtaining the product. Wherein the components used in the invention comprise, by weight, 62 to 66 parts of styrene-butadiene latex, 0.5 to 1.5 parts of slaked lime, 6 to 6.8 parts of iron oxide red powder, 26 to 30 parts of sand powder, and 0.4 to 0.8 part of a thickening agent. According to the preparation method disclosed by the invention, the preservative for the autoclaved aerated concrete, which is wide in use temperature and has excellent quick-dryi