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hard water or calcium deposits?

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  • #1

    hard water or calcium deposits?

    I recently purchased a 2004 Mustang Cobra(red) out of Utah and have been cleaning it up. However, there are water spots in some places on the paint(mostly under the hood) that have a whiteish border to them. I don't know what it is and I don't know if Utah has hard water or not. One of my car-guy freinds thought that it might be calcium deposits. I have tried removing them(testing in obscure places) with water, Meguiar's Auto Detailer, gasoline, and Scatchx2.0. I have not tried bug/tar remover, polishing or rubbing compound yet.

    Any ideas as to what this may be?
    What product(s) and/or technique(s) would you suggest?

    Thanks, Jay
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  • #2
    Re: hard water or calcium deposits?

    try vinegar. it does work very well. also polishing should take care of them too. put a fresh coat of wax on your areas when using vinegar.

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    • #3
      Re: hard water or calcium deposits?

      Vinegar will work well if they are pretty fresh calcium deposits, but if they are old water spots that have actually etched into the paint then vinegar won't do a darn thing.

      Water spots run the full gamut from super easy to remove (a quick wash with a cup of vinegar in a gallon of water) to almost impossible (wet sanding and rotary buffing) and everything in between. We would urge you to avoid using gasoline at all costs, but give the ScratchX 2.0 another shot. Apply it in a very small area, no more than about 1' x 1' and use a good bit of elbow grease. Work it for a minute or so, and give it three or four really serious applications, always wiping off before it dries. That should take care of them. If not, you've got some seriously embedded spotting going on and some machine polishing will likely be needed to correct them.
      Michael Stoops
      Senior Global Product & Training Specialist | Meguiar's Inc.

      Remember, this hobby is supposed to be your therapy, not the reason you need therapy.

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      • #4
        Re: hard water or calcium deposits?

        Thanks for the feedback corolla619 and Michael. I will try the vinegar solution first. If that doesn't work I will retry using ScratchX 2.0 again. The first time I tried it, I didn't rub too hard and I also removed it after it dried(much like waxing).

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