Jun 10, 2016 0 comment

“The use of oxygen gas during the laser cutting process will produce a scale (inorganic soil) along the edge of the cut; changing the cutting gas to nitrogen to eliminate this soil is expensive. Will the change to shop air eliminate the scale along the edge of the cut?”

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“No. Changing the gas to compressed air will not prevent the inorganic soil from forming on the metal surface since the compressed air will still have oxygen. If you want to stay with your existing process, then you must remove this soil before powder coating or painting. The recommended methods of removal are grit blast, sanding, wire brushing, or chemical etch (acid pickling).”

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