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Hard water etching
I'm working on the polished aluminum window trim of a 2017 CLS400 that the previous owner obviously parked next to a sprinkler. I blue taped off both sides and tried rubbing alcohol, then vinegar, then steel wool, then vinegar and steel wool, then a 1' high speed wheel with 3500 cutting. Nothing is working.
Aside from replacing does anyone have any ideas?
Thank you
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Super Moderator
Re: Hard water etching
I believe that's Anodized Aluminum Trim. Anodized Aluminum trim is very difficult to polish. You may have to strip the anodizing from the aluminium.
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Re: Hard water etching
Its a long shot, but about a year ago I cleaned up the same type of trim on an older MB with DG Squeaky Clean. I was using it to prep for a coating and realized that that trim that I had given up on had been cleaned up after DG SC. Not sure if dissolved years of built up film/water spots or what. I wasn't expecting it to do anything to the trim except clean it.
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Super Member
Re: Hard water etching
Originally Posted by
BrownBarbie
I'm working on the polished aluminum window trim of a 2017 CLS400 that the previous owner obviously parked next to a sprinkler. I blue taped off both sides and tried rubbing alcohol, then vinegar, then steel wool, then vinegar and steel wool, then a 1' high speed wheel with 3500 cutting. Nothing is working.
Aside from replacing does anyone have any ideas?
Thank you
A strong water spot (acid) remover will work.
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Re: Hard water etching
Thanks for the reply. And so I don't screw anything up what brand or specific type would you recommend?
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