Dry Finishing

Written by Jeremy Horelick
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The major advantage held by dry finishing processes is their environmental friendliness. Whereas metal plating leaves any number of solid, liquid, or gaseous by-products, dry finishing is completely clean. It contains none of the hazardous volatile organic compounds (VOCs) found in more industrial job shops.

Another advantage of dry finishing, for both coaters and consumers, is significantly lower cost. The more chemical baths a liquid-based process requires, the more expensive it is to complete that process. Not only must the solutions themselves be purchased, but they must be adequately maintained (which means concentrating and diluting as necessary) and electrically stimulated, both of which cost money.

The Efficiency of Dry Finishing

As a dry finishing process, powder coating also allows for the recycling of sprayed powder. One can imagine the difficulty in trying to gather up sprayed liquids to use a second or third time in the coating process. Even if a metal finisher were to do so, there'd be no way for him or her to check the purity of the gathered run-off, as it would be subject to mixture with other residual chemicals in the shop.

Overall then, dry cleaning offers the better value vis-a-vis chemical coating, anodizing, and plating; its benefits are economical, practical, and environmental. Lastly, it's much easier to re-coat a part with dry paint powder than it is to re-plate it, should the job come out less than satisfactory. This helps ensure that you, the customer, receive the turnaround time you were originally promised.

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