Solvent-free pure silicone resin emulsion can be used directly as a varnish, and can be used directly in situations that require high transparency, such as wood paint. While not covering the surface morphology, texture, or even affecting the gloss of the substrate, it is superior to existing acrylic emulsions. Polyurethane emulsion has higher hardness, water resistance, and anti-fouling properties, and has been successfully used in waterproof protection of concrete, stone, rock wool, clay, wood, paper, cultural relics, metals, etc., as well as water-in-water (sand), real stone paint, etc. Wall finish varnish.