Unlike liquid paints, powder coatings do not contain any solvent substances and consist of mixtures of resins, hardeners, pigments, fillers and additives. There are various application techniques in powder coating. The most common techniques include Electrostatic Coating and Fluidized Bed Coating. The immersing technique enables a thicker coating
During its production and use, powder has fewer negative effects on health compared to wet paint. This has been proven by various studies. In addition, the amount of energy required for the powder to ignite is 100 times higher than liquid-based paints. Therefore, the powder is very difficult to ignite and its lower explosive limit is higher than liquid paints.
The advantages of powder coating can be summarized briefly as follows;
- Powder coating is environmentally friendly. No waste is produced during production and consumption; therefore, it does not cause air or water pollution. In terms of environmental protection, powder coating does not contain the volatile organic compounds (VOC) found in wet paint.
- The amount of energy required for powder to ignite is much higher than liquid paints. Therefore, its lower explosive limit is higher.
- Powder has fewer negative effects on health than other paints. Moreover, it does not cause any problems when in contact with skin.
- Powder is ready to use. It does not require any mixing or dilution with liquid. The gun hose can be inserted into the powder bag and used immediately.
- The powder coating technique is easy to use and the operator can be trained in a very short period. It is very suitable for being used in manual and robotic systems. Thus, the operator can become an expert with brief and practical training.
- All kinds of decorative surfaces can be obtained with powder coating. Surfaces with a e.g. smooth, shiny, rough, sandpaper-like, and varnished appearance can be easily achieved with powder coating.