Why is metal powder coating so popular in the market

Metal powder coatings are more and more popular in shopping malls. Favorite metal powders are silver, gold and copper. This trend began with the automobile industry, and now other industries are also beginning to prevail. Among these metallic colors, silver is particularly popular with customers. The same is true for metal powder coatings, which account for an increasing share of shopping malls. Many powder coating manufacturers also see this trend. Metal powder coating is to add metal pigment to the bottom powder to bring metal effect to the surface and has good decoration function. With the increasingly stringent national environmental protection laws and regulations, more and more liquid metallic paints are forced to turn to powder coatings. However, to produce metal powder coatings with high quality and stable function, we need to have certain technology and experience. Considering all technologies, including raw material selection, laboratory proofing, production process and quality control, we should do a good job in safety together.

The selection of raw materials should have a deep understanding of the functions of metal pigments of different varieties and suppliers before the appropriate metal pigments can be used properly.

Different metal pigments are selected according to the requirements of powder coatings. The commonly used metal pigments include aluminum silver powder pigment, pearlescent pigment, copper gold powder pigment, etc. Metal pigments have many hue products, which greatly enrich the variety and decoration of powder coatings. Aluminum silver powder aluminum powder has floating type and is easy to float to the surface. As long as it is treated with stearic acid, it is not weather resistant. This kind of fine aluminum powder is used to make mirror silver, and the surface should be covered with bright powder. The aluminum pigment without coating treatment is used to imitate chromium and mirror silver effect, and does not have corrosion resistance. Therefore, it is necessary to select the open cover coating. Because such pigments may oxidize even under the protection of transparent coating, they cannot be used for building exterior wall coatings.

In addition, there are non floating and ultra-high power aluminum silver powder, and the coating varieties of different aluminum silver powder are listed.

The thickness of aluminum powder particle size shows different functions. It can be divided into several grades from 5um to 75um. Aluminum pigments with different particle sizes have different brightness, sparkle, different color with angle and hiding power.

Aluminum silver powder has the advantage of strong metal texture and simple material. The defect is single hue and poor chemical resistance.

Pearlescent pigments pearlescent pigments are inorganic pigments, which are composed of mica chips, and their outer layer is wrapped with metal oxides with high refractive index, such as titanium dioxide and iron oxide. Metal oxides with high refractive index, mica chips with low refractive index and surrounding media with low refractive index are placed in parallel to produce visual rainbow color.

Different colors are produced by different metal oxides and different thicknesses. The interference color can be obtained by controlling the coating thickness of titanium dioxide on a small mica chip. Mica is coated with other metal oxides such as chromium trioxide or iron trioxide to produce metallic color. Attractive gold and Brown are the result of simultaneous mixed coating of titanium dioxide and iron oxide.

The advantage of pearlescent powder is that there are more pearlescent pink and good chemical resistance. Its defect is that the metal texture is not strong and the distance is too large compared with aluminum powder.

Copper gold powder pigment copper gold powder (also known as gold powder) is a kind of metal pigment with scaly structure, which can float in the bonding process, show golden luster and pigment properties, which is made of copper zinc alloy through special machining and surface chemical treatment.

The advantage of copper powder is that there are many copper pink phases and strong metal sense. Its defects are poor chemical resistance, serious ratio, large dosage, poor temperature and weather resistance. Laboratory proofing metal powder laboratory proofing is the key first step, especially more and more metal powder coatings are used to replace liquid metal paint, because the placement of metal pigments on the surface of liquid paint is very different from that on the coating of powder paint, because the liquid fluidity is very good, and the metal pigments are tiled on the surface of liquid metal paint, showing a strong metal effect; The viscosity of powder coating is much higher than that of liquid when heating and melting, and the fluidity is much worse than that of liquid. The film thickness of a powder coating is much larger than that of liquid metal paint. The metal pigments are placed irregularly in the powder coating, with tiles, oblique and vertical, so the metal feeling is not as strong as that of liquid metal paint.

Nanjing Powder New Material Co., Ltd. is specialized in producing various epoxy powder coating, epoxy polyester powder coating, polyester powder coating, flat powder coating, texture powder coating, functional powder coating, polyurethane powder coating, acrylic powder coating and other powder coating products.

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