control temperature when use powder coating

Powder coatings as a substitute for liquid coatings market trends. Powder coating of low VOC content, easy to clear, the paint can be recycled after the use of the construction of the film basically does not produce pinhole, usually easier than the liquid coating construction, the formation of a good film durability. Advantages of environmental protection and technology is the key to substitute the powder coating for liquid coating. But there are still a lot of attention to the storage and use of powder coatings. 1, away from the fire source, to avoid direct sunlight, should be placed in a well ventilated, temperature of 35 degrees Celsius in the following 

places. 2, to avoid the storage of water, organic solvents, Oils and other materials contaminated sites. 3, after the powder coatings do not exposed to the air, should be stamped or turn tightly to prevent debris mixed. 4, to avoid the long-term contact with the skin, the powder attached to the skin of the use of soap and water rinse clean, do not use the solvent. Powder coating has become one of the most environmentally friendly coating systems. What is the 

leveling property of powder coating. Coating leveling refers to the coating of the coating construction presents smooth state, leveling the surface should not exist orange peel, brush marks, corrugated, shrinkage hole and irregular shape.

The main factors that affect the flow of powder coatings include 3 aspects, one is the leveling 

agent, and the appropriate leveling agent is added in the powder coating. When the melting of powder coatings, these additives can rapidly reduce the surface tension of coatings and promote coating before curing and film forming of fast flowing, eliminate or reduce the orange peel, brush marks, corrugated, shrinkage hole and surface defects. Second, the melt viscosity of powder coatings, for thermosetting powder coatings, in the melt flow process, accompanied by crosslinking and curing reaction, the higher the temperature, curing reaction faster, the viscosity of the system increases more rapidly, shorten the time flow flow flat restricted. Three is the baking process. There is a temperature rising process in powder coating, and the heating rate has a considerable influence on the flow of paint. Dynamic viscosity trends with temperature changes are basically the same, namely at the beginning of the viscosity with temperature increase is smaller and smaller, and reaches a minimum value, and viscosity with temperature increase and change. This is caused due to the crosslinking reaction. More important is the heating rate is higher, the viscosity minimum is smaller, and the corresponding temperature more Gauguin have to film curing, coating leveling better. At present China powder coating on the national and industry standards still in the absence of state, only sporadically released some relevant standards, and powder coating production standards is lack of a uniform provisions, which to some extent 

hindered the domestic powder coatings brand benign development and industrial chain optimization speed.