It is just a kind of coating equipment which enables in applying powder. Powder coating equipment does not require solvents in their processes. The coating is carried out electrostatically and is then passed under heat, allowing the powder to flow and form a "skin". It can be a thermoset polymer or a thermoplastic. Generally, it really is used to offer a hard finish that's harder compared to the conventional point that was formerly used. The principle reason for applying this products are for coating metals, like bicycle parts, household appliances, pool enclosures and others.

Few advantages of powder coating are mentioned below:

- It generates Much Thicker Coating When compared with Traditional Liquid Coating  

- It could be Recycled, Facilitating 100% Reusability Of The Substance  

- Produces More secure Waste In comparison with Traditional Utilization of Liquid  

Technique of Powder Coating

Prior to the powder coating process elimination of lubrication grease, metal oxides, mud, oil etc are very important. There are numerous chemical along with mechanical methods of removing these substances in the metal surface. The process is determined by the performance requirement of the finished product. In spray application process, chemical pre-treatments involve the application of chromates and phosphates. Phosphating and chromating in the substrate occur in multiple stage. Bonding in the powder for the metal involves cleaning from the pre-treatment process. Sand Blasting is definitely an another method of preparing the outer lining before coating. It can be accustomed to provide finishing, etching, surface texturing and preparation and degreasing for products made of wood, glass, or plastic. Different powder coating applications can require other methods of preparation such as abrasive blasting ahead of coating. The net consumer market typically offers media blasting services along with their coating services at additional costs.

Commonly electrostatic gun or corona gun can be used for applying the powder coating to metal objects. Here, lets discuss the working of electrostatic gun. Negative electric charge is imparted on the powder. The negatively charged powder is then sprayed for the grounded object by mechanical or compressed air spraying equipment. It's then accelerated on the workpiece through the powerful electrostatic charge. The object might be heated, as well as the powder melts right into a uniform film, and it is then cooled to form a hard coating. To accomplish more uniform finish preheating might help but problems can also be created as runs brought on by excess powder.

Tribo gun may be the second kind of gun which is used to spray powder on metal surfaces. The powder is first charged by triboelectric friction and these charged powder particles then follow the grounded substrate. It requires a different formulation of powder regarding corona guns.

Fluidized bed method may also be used for Powder coating. Initially the substrate is heated then it is dipped into aerated powder-filled bed. Later the powder sticks and melts for the hot object. Most dishwasher racks are coated using this method of [http://fergusonaekz.bravesites.com/entries/general/uncovering-root-details-for-powder-coating-supplies powder coat guns].