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We get the pipes pickled before we use them so in theory there is nothing in them but maybe a little oil. The projectiles come out brown and sometimes black, we aren't sure if it's rust or something leaching out of the pipe while baking. All resources I can find on cleaning hydrolic tube is...

Hi, we have tried cleaning them before powder coat and we have not noticed a difference. We also tried venting the caps to let out anything inside while baking and still no noticeable difference.

Hello, I have a question about cleaning rigid hydraulic lines. My company manufacturers rigid steel hydraulic lines and we also powder coat them. No the problem I have is that somewhere along our process the insides become incredibly dirty and oily. We use the ultra-clean projectile system to...