Processing technology of granite-like water-based paint

The invention discloses a processing technology of granite-like water-based paint, and belongs to the technical field of building materials. A manufacturing technology comprises the steps that roll-coating type diatom ooze is prepared, wherein pre-dispersing, stirring and thickening are conducted; secondly, a paint solution is prepared, wherein deionized water, a defoaming agent, a film-forming assistant and cellulose are sequentially added into a high-speed dispersing machine for high-speed dispersion, and heavy calcium carbonate and the roll-coating type diatom ooze in the first step are sequentially added and evenly stirred at a high speed; thirdly, a pre-soluble colloid is prepared, wherein deionized water and a protective colloid 5% solution are sequentially added into the high-speeddispersing machine; fourthly, emulsion is prepared; fifthly, the paint solution, the pre-soluble colloid and the transparent emulsion are sequentially added into a reaction kettle in a proportion to be evenly stirred, and the