Jun 10, 2016 0 comment

“I have an aluminum sand cast housing and need to know what the correct process is for applying powder coating. We also use a chromate conversion coating on the unpainted surfaces for corrosion protection. I have heard 2 different stories of which coating to apply first (powder coat then chromate and vice-versa) Please provide any information as to what is the correct procedure for this process. Thank you.”

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“Always chromate before you powder coat if you want the corrosion protection under the powder coating surface. This technology will offer 5000 hours of salt spray protection.”
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