[thesmoothers]

I’m a little confused, I’m having problems prepping my aluminum castings for plate.
After polishing to a mirror shine what step do you take before plating or anodizing? I just can’t get the right combination to prep my parts without dulling the polished shine. Can someone outline the steps you take and maybe I can use as a baseline? does any have experience in this?
I’ve tried SP degreaser, soft scrub paste, acid baths for a few....all dull the finish.
I really need the help!
Thanks, julian