Powder Coatings
Powder coating is the process of coating in which the powder is electro statically applied on the outer layers and heat produced in the process will keep the powder on outer layer. It does not require any material that makes it attach on the layer. Rather the heat itself allows forming a coating on the materials. This powder has the property of thermoplastic and thermo set polymer. Some powder coating is done for metal coating and usually the car and motorcycle vehicles are powder coated. Powder coating is the most reliable source of coating than the liquid coating.
Powder Coating Process
The process of powder coating is very simple. Simply the machine applies the powder by compressed air at a pressure of 20-30 psi. The air pushes the powder from the machine, which is simply a gun machine. Usually the powder coating equipment is a gun holding electrodes in it that make the powder positive charge. This positive charge helps in pasting the powder on the layer of the metal. You can easily learn powder coating once you know how to use the gun.
Adavantages Of Powder Coating
1. It gives a thicker coating to the metal rather than the liquid paints
2. The overcoating of powder can be recycled.
3. This is a most new technology and provides more benefits than other traditional method of coating the metal.
4. The cost of powder cotaing is less than the other coating and its efficiency is very high.
5. The powder coating appearance is almost same as no horizontal or verticle lines are seen in the coating
6. This coating provides a special effect on the metaland gives extra finished look.
Types Of Powder:
The powder used in coating are the polymers and they may be polyster, hybrid, fusion bonded epoxy and acrylics.
Powder Coating Systems:
Powder coating companies provide different types of guns specialized differently in their work. The gun used all type of powder coating colors for coating. Some guns are manually operated while now mostly electronic guns are issued. Powder coating manufacturers produces different technologies. These are Electrostatic Fluidized Bed Coating, Electrostatic magnetic Brush (EMB) Coating, and curing.
With time new technologies are also invented and these are powder coating ovens. These powder coating ovens provide automatic process of coating the powder on the metal. No manual work is needed rather simply the pieces are placed in the ovens and the pieces are coated. In car industries usually the coating is done by the machines. Either the car is coated openly by the machine spraying on it or the car is placed in huge ovens which automatically coat the car with powder. Powder coating metal is more common as it gives more finished effect on the metal piece. A smooth texture is formed on the metal. Custom powder coating is allowed in the huge orgnizations where huge metal pieces need extra care and are coated highly.
These metal pieces are coated in a way the customer order. Therefore, these cutome powders coating are done on the demand of customer, holding the information of powder color and ingredients in the powder. Zinc powder coating is used since many years as it provides great finishing to the product and therefore is more reliabel. On the other hand, chrome powder coating is in common and holds almost same porperties as the zinc has. Powder coating shop holds powder coating equipments that can be used at homes. They hold powders that are used to coat different metals. These shops are either the part of the powder coating firms or individually stand and provide all the accessories of the powder coating.