Phosphate Coating Weights & Powder Thickness
How much will the corrosion performance of a component be affected if the coating weight is reduced from 120 to 80 GSM?
Q. I understand that coating weights and film thickness can have an impact on corrosion performance of powder coated steel. My question is: how much will the corrosion performance of a component be affected if the coating weight is reduced from 120 to 80 GSM? Similarly, how will increasing the DFT from 50 to 70 or decreasing it from 70 to 50? The substrate for both these scenarios is galvanized steel. J.S.
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