Powder coating is a type of coating that is applied as a free-flowing dry powder. The main difference between a conventional liquid paint and a powder coating is that the powder coating does not require a solvent to keep the binder and filler parts in a liquid suspension form. The coating is typically applied electrostatically and is then cured in an oven, typically 200 degrees), to allow it to flow and form a “skin”. Powder coating is usually used to create a hard finish that is tougher than conventional paint. Powder coating is mainly used for coating of metals, such as gates, railings, automobile and bicycle parts. Newer technologies allow other materials, such as MDF to be powder coated using different methods.
Seven Tank Process:
The Pre-treatment used before the powder coating is called as 7 tank cleaning. It is done before applying the powder coat to the metal or aluminium. This 7 tank process for powder coating is initially important to perform before the rest of the processes.
We provide the better service for hot process cleaning and the product is then coated well after the process. Our tanks are made up of Poly Propylene. The tank treatment includes the following stages.
- Prior, the metal is first kept inside the Poly Propylene for mere 20 minutes.
- It is then rinsed in another tank.
- After taking it in the third tank, the metal is then de-rusted.
- After 20 minutes of de-rusting, it is then rinsed with water in another tank for a minute.
- It is then kept ideally in another one for compact crystal structure.
- The metal is then immersed inside a chemical for 20 minutes, which helps in the formation of compact crystal.
- The metal is then rinsed in water again. Then it is immersed inside the chemical that helps in preventing the corrosion.
- Later it is taken out in the air for further process.
After this, the metal is taken for the powder coating. When the coating is done the metal is then heated under certain conditions. Later comes the curing part where we do finish touch on the metal.
We will do anything in order to make your product look good. 7 tank cleaning services are our prior most service among the rest. 7 tank cleaning and powder coating are the two superiors most processes that would help your products better. The resulting product will be strong enough to be used in anyway.
There are several advantages of powder coating over conventional liquid coatings:
- Powder coatings emit zero or near zero volatile organic compounds (VOC)
- Powder coatings can produce much thicker coatings than conventional liquid coatings without running or sagging.
- Powder coating over spray can be recycled and thus it is possible to achieve nearly 100% use of the coating Powder coating production lines produce less hazardous waste than conventional liquid coatings.
- Capital equipment and operating costs for a powder line are generally less than for conventional liquid lines.
- Powder coated items generally have fewer appearance differences between horizontally coated surfaces and vertically coated surfaces than liquid coated items.
- A wide range of speciality effects is easily accomplished which would be impossible to achieve with other coating processes.