Large-color-point sand-in-water base paint, preparation method and large-color-point sand-in-water coating

The invention relates to the technical field of stone-like materials, and in particular relates to large-color-point sand-in-water base paint, a preparation method and a large-color-point sand-in-water coating. The base paint is prepared from the following components in percentage by weight: 20-30% of deionized water, 0.2-0.3% of a dispersing agent, 0.2-0.5% of a defoaming agent, 1.0-2.0% of an anti-freezing agent, 1.0-2.0% of a coalescing agent, 1-4% of titanium dioxide, 1-6% of kaolin, 0.1-0.5% of ethyl hydroxyethyl cellulose, 0.2 to 1.0% of methyl ethyl hydroxyethyl cellulose, 1.0 to 2.0% of a pH regulator, 20 to 40% of emulsion, 0.1 to 0.5% of a preservative, 5 to 10% of a 10wt% protective glue solution, 0.1 to 0.5% of a thickener and 25 to 45% of quartz sand. The base paint has good toughness, and the prepared large-color-point sand-in-water coating has the simulation degree of sand-in-water and can meet the simulation requirements of large-color-point and large-pattern stones.