Types of coatings

Powder coating is a type of 100% solid powder coating does not contain solvents. With features of solvent-free, pollution-free, recyclable, environmental protection, energy saving and resources, reduce labor intensity and high mechanical strength of coating film. It is made of special resins, pigments and fillers, curing agent and other additives mixed with a certain proportion, then hot extrusion, crushing and screening technology. They have stable storage at room temperature. The decorative and corrosion purpose is achieved by the electrostatic spray coating, friction coating (thermoset) or fluidized bed coating (thermoplastic), reheating baked melting and solidification to make it into a smooth and bright permanent coating.

The main effects of coatings are as follows: it has anti-corrosion protective function during the use of the material in the procession, increase surface hardness, and improve its properties such as wear resistance and resistance to injury; it can increase the surface color and luster, modify the surface roughness and defects, improve the appearance quality of goods and its commodity value; in additional, it has insulation, stain resistant, anti-bacterial, anti-mildew, damp, fire retardant and temperature, conductive, magnetic, radiation, anti-static, stealth and other special functions.

Low-pollution is the trend of coatings. Waterborne coatings can reduce volatile organic compound. It has the advantage of low pollution and clean process. Special functions of waterborne coatings are light transmittance, flexible, abrasion resistance, excellent adhesion, nonpoisonous, harmless and pollution-free; waterborne anticorrosion coating are durability, gloss and color retention and performance; the solvent emissions of high solids coating are greatly reduced, as well as fast curing, acid and alkali resistance, good abrasion resistance.

The ingredients of decorative coating consists of three parts:
Main film material: also known as adhesive and fixing agents, it is the basis of coating
Minor film-forming substances are also form part of the film, but they can not leave the main film substance to constitute film alone.
Assisted film-forming substances include solvents and auxiliary materials. Gasoline, cigarettes, perfumes, etc belong to solvents; the curing agent, emulsifier, thickening agent, rinse, wetting agent, dispersant, defoamer, initiator, catalysts, stabilizers, antioxidant, antifreeze, etc belong to auxiliary materials.Read more!