What is Powder Coating?
Powder coating uses 100% resin in a dry, powdered form. Powder coating works on the principle that opposite charges attract. The powder is pneumatically fed from a reservoir through a spray gun where the powder gains a low amperage, high-voltage positive charge. Parts to be painted are electrically grounded so that the positively charged powder particles are strongly attracted to the parts’ surfaces. The powder-coated part is then placed in an oven where the powder melts and fuses into a smooth coating.
Powder coated surfaces are more resistant to chipping, scratching, fading, and wearing than other finishes
Elimination of VOCs and reduction of wastes saves money and helps companies comply more easily and economically with the regulations of the U.S. Environmental Protection Agency. The durability factor also adds to the cost saving of recoating the item over a long period of time. This allows companies who use powder paint to continue operations for longer periods with out having to replace or recoat parts.
The curing process of the powder paint gives coated item an advanced finish that comes out much smoother than any epoxy paint. The surface variation of powder paint can range from high gloss to matted or furrowed finishes
While liquid finishes contain solvents which have pollutants known as volatile organic compounds (VOCs), powder coating contains no solvents and releases negligible amounts, if any, of VOCs into the atmosphere.