Ash anti-stick coating and preparation method thereof

The invention discloses an ash anti-stick coating and a preparation method thereof. The ash anti-stick coating includes a component A, a component B and a component C, wherein the component A includespolyol resin, ash anti-stick auxiliary agent, powder material, solvent A, leveling agent, antifoaming agent and drier; the component B includes HDI trimer and/or TDI trimer, TDI adduct and solvent B;the component C includes butyl acetate, propylene glycol methyl ether acetate, dimethylbenzene and dibasic acid ester. The component A, the component B and the component C are evenly mixed and then packaged independently. The ash anti-stick coating has the advantages that the color is shallow and favorable blending; the ash anti-stick auxiliary agent does not affect the surface effect, has no film shortcomings such as rough surface and dulling, and users' requirements for wood coating surface effects are met; the ash anti-stick auxiliary agent can be completely combined with the polyol resin,so that moisture in the ai