Application of matting powder in various coatings

With the application of coatings in more and more fields, people have different requirements for its gloss, not only high gloss, but also when the gloss needs to be reduced, such as automotive interiors, furniture and wood, and buildings. Matting powder is a substance that reduces the gloss of the paint.

After the coating is applied, when the solvent of the coating film evaporates, its surface will shrink, and the particles of the matting powder will form a concave and convex surface on the surface of the coating film that is not easily detectable by the naked eye, which will scatter the irradiated light, and the gloss of the coating film will be improved. The degree will gradually decrease, and it will no longer be "dazzling". This results in softer and less shimmering surfaces for car interiors and furniture wood.

Matting powder is very good in coatings, both from the perspective of environmental protection and application performance. In terms of environmental protection, it is very in line with the physiological and hygienic requirements of the human body, and is especially beneficial to people's aesthetic vision.

Application performance mainly includes the following points:

1. Matting. The main role of matting powder in coatings.

2. Anti-sinking property. The big problem faced by the use of matting powder in water-based coatings is that because its solvent is water, it is easy to hard precipitate, and a dispersing anti-settling agent is often required. If there is no dispersing anti-settling agent, it is recommended to use wax-treated matting powder.

3. Transparency. In addition to high extinction efficiency, it is a good extinction powder that does not affect the original transparency of the coating film.

4. Thixotropy. The thixotropic performance is related to the oil absorption of the matting powder. The oil absorption is small, and the thickening effect of the coating is also small.

5. Dispersion. Matting powder has a sponge-like structure, so it is forbidden to disperse or grind at high speed for a long time, otherwise it will destroy its structure and affect the matting effect.

With the popularization and vigorous promotion of the concept of environmental protection, water-based coatings are gradually accepted and demanded by the market. Any paint that uses water as a solvent or as a dispersion medium can be called water-based paint. Water-based paints include water-soluble paints, water-dilutable paints, and water-dispersible paints (latex paints). Water-soluble coatings use water-soluble resins as film-forming materials, represented by polyvinyl alcohol and its various modifications, in addition to water-soluble alkyd resins, water-soluble epoxy resins, and inorganic polymer water-based resins.

The main function of matting powder in coatings is matting. At present, most matting powders on the market have good application effects in oil-based coatings, and the main difference is that the matting efficiency and surface effect are different. However, water-based coatings are special. The traditional oil-water general-purpose silica matting powder can no longer take into account the relationship between matting efficiency, surface effect and rheological properties. The problem is mainly reflected in dispersibility and anti-settling.

Jiangmen Shengpeng Chemical Industry Co., Ltd. specializes in the production of various chemical raw materials: coating matting agent, thixotropic thickener, special silica for glass glue, special silica for mixing rubber, DMC, dimethyl silicone oil, 107 room temperature vulcanization Silicone rubber, hydroxy silicone oil, hydrogen-containing silicone oil, vinyl silicone oil, methyl capping agent, zinc stearate, calcium stearate, magnesium stearate and other products, all product indicators meet or exceed national standards. The products are widely used in PU, NC, PE paint and other wood coatings, automotive coatings, marine coatings, powder coatings, textiles, cosmetics, rubber products and other fields. The product quality is guaranteed, and the SGS test results meet the EU ROHS directive standard. We sincerely hope to achieve more extensive cooperation with domestic and foreign customers, and we are willing to work together with you to create a better future!

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