Hard water spot removal, BMW windows

Mineral water spots car glass window
Problem: Hard water causing mineral deposits on glass.
Cause: High mineral content of water.
Application: All models
Solution: Whink Rust Stain Remover
Where to buy: BUY HERE
Cost: $5 - $10 per 16 fl. oz bottle

What is the cause of hard water?

Water with high mineral content, such as calcium and magnesium.

Why does water forms spots on glass?

When hard water sits on glass and the water evaporates, the minerals in the water are left behind on the surface.

What are the effects of hard water on glass?

Evaporated hard water on glass leaves unsightly mineral spots which are very difficult to remove. Since glass is a porous material, these sometimes corrosive minerals can become trapped in the pores of the glass. In some instances the damage is irreversible.

What is the best way to remove hard water spots on glass?

The hands down best cleaning agent to get rid of the hard water deposits on glass is to use Whink brand Rust Stain Remover. This magic little bottle can be found locally at any convenience store and is the best-kept secret for removing hard water spots.

Where can I buy Whink Rust Stain Remover?

What is the process?

Make sure to wear latex gloves when applying as this chemical is toxic and can damage your skin. Simply pour some of the liquid on a paper towel and start wiping your window in a small 6 by 6 inch area. Let it stand for a bit and evaporate to the point where it turns hazy. Go over the same spot with the damp paper towel and keep rubbing until the spots disappear and you can visually see the shine back in your windows. It may take 40 to 50 wipes in one spot to remove some bad deposits on the glass. Continue with the rest of the windows the same way and you will be amazed at how this product destroys those mineral deposits.

Refer to the images below for results photos.

Take caution to not get this cleaning supply on your rubber seals or paint as it may have an adverse reaction to it. I have tested this on the E30, E36 and E46 with no issues at all on all the glass windows. At times, the rubber seals had the cleaning agent on them and no negative reactions occurred that caused any damage or discoloring.

Other techniques to remove mineral spots:

  1. ➛ Use half water half vinegar mixture to wash windows.
  2. ➛ Clay bar.
  3. ➛ Pure white vinegar.
  4. ➛ Buff with lemon juice
  5. ➛ Rubbing alcohol
  6. ➛ Rubbing / polishing compound
  7. ➛ Ammonia / Water mixture
  8. ➛ Steel wool (will not scratch glass, will scratch the paint)

How to prevent hard water spots:

  1. ➛ Filter the water before washing your car
  2. ➛ Dry the car properly before the hard water has a chance to leave deposits.
  3. ➛ Ensure your car is waxed properly to create a barrier with the paint
  4. ➛ Rinse your car with pure distilled water.

Where can I learn more pro tips for maintaining my BMW?

Learn more pro tips by clicking HERE

Disclaimer:
Before trying any of these techniques please makes sure to try them in an inconspicuous location. Ensure no damage is done to the surface before applying the cleaning technique to the rest of the area. We claim no responsibility for any damage that may occur.

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Mineral hard water spot removal glass
Mineral hard water spot removal glass
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Mineral hard water spot removal glass
Mineral hard water spot removal glass
Mineral hard water spot removal glass