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Thread: How To Remove Water Spots

          
  1. #1
    Registered Member Mike Phillips's Avatar
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    How To Remove Water Spots

    How To Remove Water Spots off Automotive Paints


    Swirls, scratches and water spots are the three most common paint defects car enthusiasts struggle with when it comes to removing them and preventing them from coming back. In this how-to article we'll take a look at water spots, where they come from, how to remove them and also how to prevent them.


    There are two basic kinds of water spots or water marks found on automotive paints.
    • Type I Water Spots - Above Surface Mineral Deposits
    • Type II Water Spots - Below Surface Water Spot Etchings
    Type I Water Spots
    Type I Water Spots are what Meguiar's refers to as Above Surface Bonded Contaminants. A Type I water spot is some type of deposit, often times a mineral deposit that was suspended in the water source to begin with, then after the water evaporated off the finish the mineral is left behind where it bonds to the finish usually in a circular or pattern or shape.


    Type I Water Spots - Mineral deposits sitting on top of the paint







    How to Remove Type I Water Spots
    If you discover Type I Water Spots on your car's finish, it will often times require the use of both detailing clay and a paint cleaner to completely remove all trace of the mark left behind.

    • Step by step process for removing Type I Water Spots

      Step 1 - Wash & Dry the Car
      First wash the car thoroughly using a quality car wash to remove any loose contaminants and to also remove any portion of the mineral deposit that has not yet bonded to the paint. After washing the car, dry the car to remove any standing water and to prevent further accumulation of Type I Water Spots.

      Step 2 - Clay the Paint
      Use Meguiar's Smooth Surface Clay Kit to clay all affected paint panels. Meguiar's Detailing clay is a special clay that you knead into a wafer or patty, somewhat like a pancake, and then rub over the finish using Meguiar's Quik Detailer as a lubricant between the clay and the paint. As you're rubbing the clay over the finish, the specialized abrasives will loosen and remove any deposits sitting on top of the paint and trap them into the clay and our clay will do this without instilling scratches into the paint.

      Because as you're claying, you're removing these mineral deposits and trapping them into the clay itself, you'll want to take your clay patty and fold it into itself and then re-knead it to expose a fresh side of clay. Also keep a microfiber polishing cloth handy and wipe down the clayed area as you work to remove any excess Quick Detailer from the paint so that you won't have to re-wash the car.

      Repeat the above process until you've clayed all of the horizontal panels on your car and possibly even the vertical panels should you discover Type I Water Spots on the sides of your car's paint.

      Step 3 - Clean the Paint with a Paint Cleaner
      After claying the finish, re-inspect the affected areas, the paint should look smooth and clean as well as feel smooth like a piece of new glass. If you see any trace outlines in the paint where the water deposits were previously, then you'll now need to use a paint cleaner like ScratchX to remove these imperfections out of the paint.

      Any water spots or marks left in the paint after claying the paint are actually etchings in the paint and must be removed using a paint cleaner. Water Mark Etchings are what Meguiar's calls, Below Surface Defects, that is these water marks are where the mineral deposits, (left after the water evaporated off the finish), actually etched into, or ate into the paint. This is why the detailing clay did not completely remove these marks, it's because these marks are below the surface and detailing clay only removes contaminants sitting on top of the surface.

      ScratchX is a paint cleaner that uses Meguiar's Microscopic Diminishing Abrasive Technology to safely remove swirls, scratches and other below surface imperfections out of the paint. Simply apply ScratchX using a clean, soft foam applicator pad and then work the product against the finish with firm pressure. Work a small area or directly on the affected area for 2-3 minutes and then immediately remove any leftover product from the paint and inspect. If the mark is no longer visible, apply a coat of wax to protect the paint. If the mark is still visible, then repeat paint cleaning step using ScratchX. Some swirls, scratches and water spot etchings will require multiple applications to remove depending on how hard the paint is and how deep the defects are.


    Type II Water Spots - Etchings below the surface

    Type II Water Spots are what Meguiar's refers to as Below Surface Defects. A Type II Water Spot is actually an etching in the surface where whatever was in the water was strong enough in its chemical composition to actually eat or dissolve the paint and thus etch into the paint.


    Type II Water Spots - Etchings below the surface




    Close-up of same photo above





    If you discover Type II Water Spots in your car's finish, you can use a paint cleaner by hand such as ScratchX and the procedure outlined above in Step 3 for removing below surface etchings left by Type I Water Spots, or you can use a machine applied product such as a Meguiar's paint cleaner, or cleaner/polish to remove the water spot etchings using Meguiar's G100 Dual Action Polisher.

    Meguiar's Dual Action Polisher will safely clean your car's finish removing a small amount of paint in an effort to level, or smooth-out the paint. The goal is to remove just enough paint to level the upper most portions of the surface with the lowest depths of the defect you're trying to remove. In some cases you may want to check with a seasoned professional for their advice before attempting to remove below surface defects like Type II Water Spots.


    Important Note: Anytime you use detailing clay and/or a paint cleaner on your car's finish, you need to reapply a coat of wax to the paint as detailing clay and paint cleaners will remove any previously applied wax off the paint.



    How to prevent water spots from coming back
    There are two important things you can do to help prevent water spots from coming back, one is to remove water from the finish before it can dry and potentially leave a water spot. Meguiar's offers a number of different tools to help you do this including, our waffle weave Water Magnet Drying Towel, our Soft Touch Microfiber Chamois, and our Premium-Natural-Chamois which comes in 4 different sizes.

    Besides keeping water off your car, the next best thing you can do is to keep maintain a good coat of wax on all the painted surfaces, to help with this Meguiar's offers a number of different waxes to suit everyone's preferences including, NXT Generation Tech Wax, Gold Class Liquid Wax and Deep Crystal System Carnauba Wax.
    Mike Phillips
    Office: 800-869-3011 x206
    Mike.Phillips@Autogeek.net
    "Find something you like and use it often"

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    Registered Member VR4Rob's Avatar
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    Hey Mike, thanks for the awesome writeup about removing waterspots from paint. Do you have any advice about removing stubborn water spots from glass surfaces? I'ved tried several things such as rubbing compound and many of the products you listed above but I just cant seem to get the glass as smooth as I'd like. Thanks!

    -Rob
    -Rob
    Mariana Blue Pearl 1994 Mitsubishi 3000GT VR-4
    310 AWHP 326 AWTQ @ 15psi
    http://www.vr4rob.com/

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    Re: How To Remove Water Spots

    Ever try distilled vinegar?

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    Registered Member Mike Phillips's Avatar
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    Re: How To Remove Water Spots

    Quote Originally Posted by Junebug View Post
    Ever try distilled vinegar?
    Sometimes distilled vinegar will remove some of the mineral deposits, but it's never a sure thing.

    The two methods outlined above are sure things. After washing a car if you find water spots in or on the paint, first this means that washing didn't remove them, thus you're going to have to move on to Plan B.

    Plan B is to determine if the water spots are above the surface and are in fact deposits, which sometimes vinegar will remove them, or at least some of them, or if the water spots are in fact holes in the paint, in which vinegar will do nothing.

    The article above is pretty detailed in what the two different types of water spots are,
    1. Deposits on the paint
    2. Etchings below the paint

    After determining which you have you can then decide which approach works best for your situation.


    Often times even after you remove deposits that have bonded to the paint the deposits will leave etchings that will have to be removed with ScratchX or some other type of paint cleaner or cleaner/polish.


    Mineral Deposits on the paint - Type I




    There is no way in the world vinegar is going to remove the paint around this hole or etching in the clear coat; the only way to remove this is to remove the paint surrounding the etching using some type of paint cleaner or cleaner/polish.

    Water etching below the surface - Type II
    Mike Phillips
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    Mike.Phillips@Autogeek.net
    "Find something you like and use it often"

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    Re: How To Remove Water Spots

    You know, water spots are like a sun burn - it's best to prevent it than to treat it. But then, if everybody took excellent care of their cars then I'd have to find another second job as there would be no need for detailers. Mike, I wasn't trying to second guess you, just there's all that (start with the least aggressive polish/pad/cleaner etc) I just thought before you got into a war with water spots - to try distilled vinagar, my method is to saturate an old MF towel and let it soak on the spots for 5-10 minutes and then scrub it. It's worked for me, but then, I didn't have that "paint cancer" that you showed in your pic to deal with either.


    [Edited for implied bad language. Please keep language family friendly; Thanks, 2hotford]

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    Re: How To Remove Water Spots

    hi Mike thanks for tip, I'm just new here but im loving every second of it. Thanks for sharing this articles. Albert.

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    Re: How To Remove Water Spots

    I had to travel for work and was away for two weeks. To make things worse the car is black. I have tried to polish the spots out already. I am guessing that I did not use a polish abrasive enough. What polish would be abrasive enough to get rid ofthe spots?

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    Re: How To Remove Water Spots

    Oh yeah. Thanks for all the help guys.

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    Registered Member Mike Phillips's Avatar
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    Re: How To Remove Water Spots

    Quote Originally Posted by 06gasi View Post
    I had to travel for work and was away for two weeks. To make things worse the car is black. I have tried to polish the spots out already. I am guessing that I did not use a polish abrasive enough. What polish would be abrasive enough to get rid of the spots?
    What polish did you use to start with?

    Most people think the paint on their car is soft, and in most cases it's hard, and that means it's going to be hard for you with your 4 fingers pushing down on an applicator pad to remove small particles of paint in and effort to level the uppermost surface with the lowest depths of the water spots.

    Didn't know if you knew this?
    Mike Phillips
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    "Find something you like and use it often"

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    Re: How To Remove Water Spots

    If I have water dried on my paint I get some spots, but I have never seen any that wouldn't come of after just using a normal car wash. I guess if you have water that is not very clean or the sun burning it in to the paint or a surface that is not protected with some sealant or wax, it might be different.

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