We appreciate the intended compliment when people say they are posting an inquiry here to get "expert opinion", BUT we have to remind everyone that you don't get "expert opinion" free of charge from strangers miles away or half a world away who have neither seen the problem first-hand nor vested themselves in its solution beyond putting in a couple of spare minutes on-line.
Neither finishing.com nor the other responders are offering anything other than a quick first impression, and we specifically disavow any responsibility or liability for opinions expressed here and "answers" provided, some of which may be good, but some of which are surely bad.
It is all for reference only, and the best you should expect is perhaps a time-saving pointer or two.
If you need expert opinion, you need to pay for a consultant's time to see the problem firsthand, investigate it, and actually understand it. Some metal finishing consultants are listed in our directory here.
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