Aluminum silver powder or silver powder

powder or silver powder because of its silvery white metallic luster. Its chemical composition is actually "aluminum", not "silver". Application range: powder coating, ink, plastic masterbatch, printing, imitation gold paper, imitation gold card, gold film, textiles, but it will oxidize and turn black when used in water-based paint and acid-base paint. It is not recommended for occasions requiring acid and alkali resistance and combination with rainwater.

2. Ultra-fine silver powder: 1. The surface area of ultra-fine floating silver is large. When it is exposed to the air, it can quickly form a passive protective film on its surface, that is, oxidation and blackening. Sealing measures must be taken to prevent floating silver from It is recommended to be used in occasions that require alkali resistance. If required, silver white pearl powder can be considered; 2. There are certain differences between batches of silver powder, and it is greatly affected by the process and spraying. In addition to maintaining the stability of the production process as much as possible In addition, it should be tested first before production, so as not to expand losses. 3. Add 1-2% of ultra-fine silver to cover the bottom. In the case of adding high-gloss wax AW500B, 0.6%-1.5% can cover the bottom and produce a strong metallic luster. Blue, black dots and black silk when the amount added is insufficient, or commonly known as fly droppings, the overall black. 4. Floating silver is in the form of flakes, which always float on the outermost layer of the coating, so the hardness and anti-oxidation blackening performance are slightly poor. To obtain better hardness, it is necessary to add printing and hardening agent AS501, and add silver powder to increase the hardness. Hard agent POL16, POL09, etc., cannot add high-gloss wax, gold and silver powder alignment agent, polyethylene wax, etc., the longer the mixing time, the better the effect.

3. Floating silver: 1. The smaller the particle size of the silver powder, the stronger the metallic feeling and the stronger the hiding power; if the amount added is too large, it will easily cause powder spit out and clog the tip of the gun; if the amount added is not enough, black spots, blooming or tiny stripes. R18, R01 and other special-effect new silver powder dispersants are high-efficiency dispersants using SIO2 as a carrier. Different from ordinary silver powder dispersants, they can be uniformly dispersed without black spots no matter how much silver powder is added. Therefore, it can be adjusted by adjusting the background color and reducing the amount of silver powder. Modulate gray-black, blue-shade and silver powder effects of different hues, the addition amount is very small, and it has a good promotion effect on leveling. Add it to the flakes and grind it together, you can't add it directly, it will produce particles and white spots, etc. R01 has the best effect, and it can be directly dry mixed without particles. 2. The flaky structure of the floating aluminum powder will be destroyed (deformed or crushed) during the grinding and extrusion process, resulting in grayish color, so the dry mixing method is generally used.

4. Non-floating silver: 1. Non-floating silver is evenly and parallelly distributed in the entire coating film, so it is wrapped by resin, so it has good oxidation resistance and wear resistance, good weather resistance, acid and alkali resistance, No fingerprints, the surface is shiny, and the color can be adjusted from the base powder, but the amount added is larger than that of floating silver, and the metallic effect is stronger than that of floating silver, and it is whiter. 2. PCRDIS aluminum powder is especially suitable for outdoor products, because it has an inorganic coating layer, which has good water resistance, weather resistance, and chemical resistance; although it is coated with silicon and other materials, in a natural exposure environment, the aluminum powder is Under conditions such as light and humidity, chemical and physical changes such as oxidation will soon occur, thereby weakening the metallic feeling, graying and darkening the coating film, and gray spots appearing. In order to solve such problems and problems such as being scratched, it is recommended to use transparent powder to cover the light. 3. The addition amount of the base cover is tested with transparent base powder. The addition amount of flash silver can reach up to about 10%; the mixing and spraying process directly affects the spraying and covering effect, please pay attention to the uniform mixing and the consistency of spraying, the thicker the particle size is, the shimmering The better the effect. 4. Due to the difference between the silver powder particles and the powder in terms of shape, density and charge, it will cause separation and affect the powder. Bonding technology is used to bond the powder and silver powder, and the powder application and effect are greatly improved. 5. Aluminum powder can withstand high temperature of 600 degrees without changing color.