Precautions before metal plastic coating

Precautions before metal plastic coating:

Dalian metal plastic is painted with metallic color, which is not a way of covering color, so it can not be sprayed with glossy black. Metallic color is added with metal particles in the color paint to produce a metallic feeling, but the main color is ordinary color, so the covering power is very limited. The covering color is the base color, sprayed with pure metallic color, such as silver, and then sprayed with transparent red or other transparent colors on it, so that the color is brighter and the color of metallic color itself is darker, such as bright red, When metal particles are added, they become dark red and some hair gray. For example, after spraying bright silver on the new Anzhou background color, spray transparent red or even red. The color is much brighter.

Tungsten disulfide powder can be sprayed on the substrate surface by dry and cold air under pressure of 0.8MPa (120psi). Spraying can be carried out at room temperature, and the coating is 0.5 micron thick. In another way, the powder is mixed with isopropanol to apply a sticky substance to the substrate. At present, tungsten disulfide coating has been applied to many fields, such as automobile parts, racing engine and other parts, aviation parts, bearings, shafts, deep-sea transportation tools, cutting tools, blades, cutters, knives, demoulding, high-precision bearings, valve components, pistons, chains and so on.

Dalian metal plastic coating is also known as electrostatic powder spraying coating. Its treatment technology is a widely used decoration technology of metal surface treatment in the world since 1980s. Compared with ordinary painting surface treatment, this technology has the advantages of advanced technology, energy saving and high efficiency, safety and reliability, bright color and so on. Therefore, it is often used in the field of light industry and household decoration.

The powder coating is leveled and solidified after baking at high temperature, and the plastic particles will melt into a dense protective coating with different effects; Firmly attached to the workpiece surface. 502 glue has certain toxicity, but the toxicity will be reduced after curing, but 502 glue is cyano compound after all, and toxic substances will be produced after decomposition. In case of moisture, the water vapor is catalyzed and quickly combined, solidified and adhered. Non toxic after curing. The addition polymerization reaction occurs under the catalysis of trace water in the air, which solidifies rapidly and adheres to the adherend.

Dalian metal plastic coating metal aluminum, especially aluminum foil or aluminum film deposited on plastic and paper, has soft texture and poor wear and scratch resistance. Aluminum alloy profiles also have similar problems, which need coating protection. Similar to traditional coating, before metal coating, most of them need some form of pretreatment on the metal surface to improve the surface condition, so as to improve the adhesion of the coating and enhance the anti-corrosion protection of the metal substrate.