Research on various Drymix mortar additives

Colored cement dry powder coatings are inorganic, mainly using natural ore or metal oxide materials with abundant reserves as raw materials, including cement, quartz sand, limestone, Heavy Calcium Carbonate, wollastonite, and ash calcium. Because the raw materials come from nature, the resources are abundant. Compared with organic coatings, the production process of inorganic coatings causes less pollution to the environment and has low production energy consumption. It also has heat resistance, mildew resistance, crack resistance, and flame retardancy. At the same time, the aging resistance of inorganic coatings is also the most organic coatings that are hard to compare.

(1) Product Features

1) The hardness of the coating film is high, the wear resistance is good, and there will be no phenomenon of high temperature sticking back;

2) Excellent color retention;

3) Good impermeability, good alkali resistance, and acid resistance;

4) Good mildew resistance; the inorganic base material does not contain mold and microbial nutrients;

5) flame retardant, high-temperature resistance;

6) Good weather resistance and aging resistance;

7) Full texture and good visual effects;

8) Non-toxic and environmentally friendly, simple production process;

9) Quantitative packaging, easy to use; add water on site.

(2) Range of application

Colored cement dry powder coatings are suitable for residential buildings, commercial buildings, and industrial plants and are ideal for color decoration of interior and exterior walls with base materials such as gypsum boards, GRC boards, and light concrete surfaces.

(3) Construction technology

1) base surface

The base surface must be smooth, solid, and without oil stains.

2) Airbrush construction

Due to the airbrush construction, various pipes and window frames must be covered to avoid contamination.

3) stir

Pour about 30% of water into a clean container, slowly pour in the dry powder, stir with an electric mixer to form a slurry, let it stand for 5 minutes, and then continue stirring to create a uniform slurry without any agglomeration. Adjust the amount of water appropriately according to the temperature.

4) Construction method

Pour the slurry into the hopper of the spray gun; try spraying on a waste board first, adjust the airflow and the uniformity of the material, and then spray evenly from left to right, covering the entire wall; no missing spray is allowed, and no repetition in a specific place to avoid local color difference. After the first coat is dry, apply the second time. If there is still chromatic aberration or bottom leakage, it should be sprayed a third time. The amount of material used is about 1~1.5m2/kg. After it is scorched, it can cover with acrylic finish paint.