How to Remove Water Spots

No matter where you live, removing these stubborn water spots on our cars and windows in our homes is something we have probably all had to deal with.

Acid Rain

250px-Acid_RainThe term Acid Rain does not actually refer to acid falling from the sky. The effects of acid rain come about due to clean rain water mixing with dust, metal oxides, and/or chemical dust deposits on the surface of your car. The most common cause of the spots commonly blamed on acid rain is hard water. Let’s look more closely at what we are talking about.

Definition of “Hard Water”

hardwaterglassInherent to our Gold Coast water supply, and common in any major metropolis is the problem of Hard Water. This type of water is full of minerals such as calcium, magnesium, and compounds such as sulfates and bicarbonates. When “hard water” comes in contact with glass and is left to dry by evaporation, it can form water spots that are unsightly and very hard to get rid of. Common places to see spots like these are the inside surfaces of your shower glass, or the parts of your car windshield that the wipers cannot reach. Most common causes are Hard Water, Lime Scale, Soap Residues etc.

Removal Methods

The professional method of removing water spots, mineral deposits and calcium staining from glass is using Cerum Oxide (also known as Jewellers Rouge) or a similar glass polishing compound. These can often be expensive, and difficult to come by. Alternative methods that may work at home are:

  • White Vinegar: (acid) Wearing gloves, use straight, on a soft cloth.
  • Fine Grade Steel Wool:  (abrasive) Use a superfine grade, OOO or OOOO grade only.
  • Lemon Juice:  (acid) Extract as much as possible and mix with a little water.
  • Baking Soda:  (alkaline) Mix with water and apply. Let soak then remove.
  • Coca-Cola:  (acid) Although not the strongest form of acid, if it will clean an old coin, it will clean your glass too. Probably a far better use than drinking it…

By now, if you know a thing or two about chemistry, you’ll recognise a pattern of acids, alkalines, and abrasives.  The corrosive nature of these products is the key to removing/dissolving the mineral deposits that ordinary household soaps and cleaners won’t budge. For extra shifting power, combine one of the solvents with the superfine steel wool.


Prevention is Better than Cure

Nanotec_WARNING-stickerOur NanoBionic smart-surface treatments for glass from Nanotec-USA. This product uses molecular bonding of self assembling nanoparticles with the specially treated glass surface to form a nano-scale structure that is highly repellent to dirt, water and even calcium and lime. Check out this link to our album demonstrating its effectiveness.   Glass Treatments


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