Powder coating is an environmentally friendly process. The industrial classification of powder is “nuisance dust” which means it is comprised of very fine solid particles, with the main drawback being that it is very dusty if spilled. This is vastly different from the ingredients in paint which include known carcinogens and volatile organic compounds (VOCs) that are harmful to health and the atmosphere. Powder is applied through a spraying mechanism, or Corona gun, that electrostatically charges the powder with a mildly negative charge. The item being coated has a mild positive charge applied to it, thus allowing the “opposites” to attract. The attraction is so strong that we see up to 90% transfer efficiencies. Liquid paint transfer efficiency is roughly in the 50% range, creating significant harmful and hazardous waste.
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