change happen on powder coating

Appearance: a part of the picture looks thinner and the quality is better, because the film is much thicker and looks more intuitive than the volume. Round edge. The paint is smooth to the touch. Mechanical properties: powder coatings are more resistant to impact, scratch, etc.. Chemical resistance to most of the weather, UV, acid, alkali, etc.. Curing schedule, is a powder coated with a powder, which is the baking temperature and time conditions. 

These two parameters are necessary when taking into account a furnace implementation or the reform of the existing. If you want to get satisfied with the painted part is essential to respect the given conditions of the paint manufacturer cured. Thermoplastic powder coating began to appear in 1950, it was dissolved in melt at the temperature of spraying, and solidified into a film at the time of cooling. Because the processing and the spraying method are simple, the powder coating can only be heated and melted, and the flow is smooth, the cooling or the extraction can be solidified into a film, and the complicated solidification device is not needed. Most of the raw materials used are common polymers in the market, most of the conditions can meet the requirements of the use of performance. But there are some disadvantages, such as high melting temperature, low color level, and poor adhesion to metal surface. The main component of each coating system is binder. 

These form the paint film, which is the foundation, enveloped in the inside of all solid state. It determines the basic properties such as surface quality, hardness and film stability. The binder includes a long, mostly organic compound containing the contents of the reactive groups.

Synthetic resin powder coating are used, which can be connected together by the network, or for the branching macromolecular curing agent. Mainly used for epoxy, carboxyl - and hydroxyl containing polyester, OH - and GMA - acrylic resin, resin and special application modification. The selection of the binder basically determines the physical properties of the powder coating, so the operating range of the powder coating is determined. In addition, one of the curing agent of the binder. Important substances were used as curing agents for the glycerol ester of glycerol ester (TGIC) and hydroxylalkylamide polyester resin, and twelve alkyl acids (from the English word for twelve alkyl acid DDDA). For the initial form of the powder coating, the thermal plasticity of the base coating process is available, and the use of other resins. Film agent is mainly in these systems, polyamide and polyethylene, polyvinyl chloride (PVC) and poly partial ethylene 

dichloride, these adhesives resulted in relatively soft. Coating process for higher layer thickness.