why use powder coating not liquid

At present, the application of powder coating is more and more widely, which not only 

benefit from the characteristics of its environmental protection, but also because it is 

rich in variety, to meet the individual needs.

Thermosetting powder coating is refers to thermosetting resin as film-forming substance, adding curing agent for crosslinking reaction after heating to form insoluble and infusible hard texture coating. The temperature is high and the coating is not as soft as the thermoplastic coating, but only the decomposition. Due to the polymerization degree is low, the prepolymer resin used in 

thermosetting coating, low molecular weight, so coating leveling has good good decoration 

and low molecular weight prepolymer cured, the formation of cross-linked macromolecules and 

consequently the coating has good corrosion resistance and mechanical properties. 

Therefore, the development of thermosetting coating is particularly rapid.

Epoxy powder coating are the first application of thermosetting coating because of its excellent properties, adhesion, corrosion resistance, hardness, flexibility and impact strength. The 

preparation of epoxy coating is made up of epoxy resin, curing agent, pigment, filler and 

other additives. The contribution of these components to the formation of the powder 

coating properties is mutual restraint and influence, a suitable formula, in fact, is the 

result of the coordination of various components.

Powder paint spraying convenient, but there are also a lot of attention to matters: first to away from the fire source, to avoid direct sunlight, should be placed in well ventilated, temperature in less than 35 DEG C places; secondly, avoid storing in susceptible to water, organic solvent, oil and other materials contaminated sites; powder coating with not optional dew in the air, shall from time to time stamped or turn to close the bag to prevent debris mixed; avoid skin long-term contact attached to skin powder apply soapy water rinse clean, do not use solvents. Coating 

construction site safety; coating equipment used to well grounding to eliminate static 

electricity; finally, avoid coating machine unprovoked discharge phenomenon; spraying 

chamber, floating dust concentration try to control under the safe concentration to avoid 

risk of fire or explosion dust.