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Old 10-21-2019, 01:08 PM
Bob's GTO Bob's GTO is offline
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Default Cleaning Powdercoated Gas Tank

Looking for suggestions or ideas. Last week I got caught in the rain coming home from a show. Before I pulled into the garage, I rinsed everything underneath the car with water from my garage hose bib. A couple days later I noticed the gas tank had water spots. This is a new tank from Yogi's that came Powdercoated a nice silver gray. I tried some compound in an inconspicuous spot, it took the spots off and some of the finish. I then tried Lime Away which did nothing. Does anyone have any suggestions on how to clean the waterspots off the powdercoat finish?
OBTW, yes I have well water that tested hard, I have a softener system.

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Old 10-21-2019, 03:54 PM
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Stuart Stuart is offline
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Quote:
Originally Posted by Bob's GTO View Post
I tried some compound in an inconspicuous spot, it took the spots off and some of the finish.
Maybe try something not quite as harsh, like a finer compound or a cleaner/wax?

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Old 10-21-2019, 04:04 PM
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Sirrotica Sirrotica is offline
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Vinegar removes water spots on glass quite well, I doubt it will harm powdercoat, but test it somewhere inconspicuous to be sure.

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Old 10-21-2019, 04:12 PM
Bob's GTO Bob's GTO is offline
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Thanks for the responses.
I used straight vinegar on a damp rag, and straight CLR. Neither budged the spots.
I keep a small tube of Crest toothpaste in the shop for cleaning plastic lenses like taillights ect. I tried some of that and it removed the finish the same as compound. I also have a jug of 3M perfect-it #3, but that's too fine, it polished but did not remove the spots. I think I'll try 3M#2 after work today. Thanks.

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Old 10-21-2019, 04:38 PM
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Sirrotica Sirrotica is offline
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If vinegar does nothing to it I have doubts that it's just water spotting, maybe something that actually penetrated the finish, acid etching?...……

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1984 Grand Prix

100% Pontiacs in my driveway!!! What's in your driveway?

If you don't take some of the RACETRACK home with you, Ya got cheated

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