True stone QiChang home: dry powder type of application

Powder coating is a kind of used for the free flow of powder coatings. Main difference is that of traditional liquid coatings and powder coatings powder coatings do not need to glue and packing in the part of the window to make liquid suspended in a solvent. Coating usually coated in static way, then falling and solidifying heat, allow it to flow and form a 'skin'. Powder can be thermoplastic or thermosetting polymers. It is usually used in the manufacture of more hard than traditional coating, harder to complete the coating. Powder coating is mainly used for coating metal, such as household appliances, lu: xingcai, drum hardware, automobile and bicycle parts. New technology that allows for other materials, such as medium density fiberboard (MDF), using different methods of powder coating. Powder coating process has many advantages compared with other coating, although the technology also has some disadvantages. Although relatively easy to coating thickness on the surface of the coated with smooth texture, but smooth coating film is not so easy. With the decrease of the thin film thickness, film is becoming more and more orange peel particle size and glass transition temperature of powder texture. For a small operation, the powder coating is higher than the cost of the paint. In order to optimize the material processing and application of convenience, most of the powder coating grain size in the range of 30 to 50 microns, the glass transition temperature is about 200 ℃. More than 50 microns of powder coating gathered may need an acceptable light synovial membrane. Is considered to be the ideal or acceptable surface texture depends on the final product. Many manufacturers prefer orange peel, in fact, to a certain extent, because it helps the hidden defects in the production process of metal, and the coating is not easy to show the fingerprint. There's a very special operations or powder coating, the glass transition temperature below 40 ℃, less than 30 microns, used in the production of smooth film. A variation of dry powder coating process, slurry process, by dispersed into the water, then allow very smooth, low film thickness of the coating produce superfine powder of particle size of 1 to 5 microns, combines the advantages of powder coating and liquid coating. Powder coating has a lot of advantages, spraying can be recycled. However, if in a spray room spray a variety of color, this could limit the recovery ability to paint. Source: WWW colorful coating. kobojc。 com