Hemp sand coating and preparation process thereof

The present invention discloses a hemp sand coating and a preparation process thereof. The hemp sand coating comprises a first auxiliary agent, a second auxiliary agent, a silicone acrylic emulsion, a flexible resin and a sand mixture, the first auxiliary agent comprises, by weight, 0.5-0.8 part of a tert-butyl hydroperoxide solution, 20-40 parts of ammonia water, 250-265 parts of water, 120-130 parts of vinyl acetate, 20-40 parts of vinyl versatate, 0.2-0.5 part of an anionic emulsifier, 30-50 parts of butyl acrylate, 10-30 parts of polyvinyl alcohol, 0.8-1.1 parts of amino modified silicone oil, 0.2-0.6 part of a nonionic emulsifier and 12-26 parts of silica sol. The coating is prepared by mixing rohdea japonica natural colored sand, snowflake white natural colored sand, chrysanthemum yellow natural colored sand, Taihang mountain natural colored sand, violet natural colored sand, sapphire blue natural colored sand and silver grey natural colored sand, so that the hemp sand coating is rich in color, the colo