How to Remove Hard Water Spots from Your Car – The 4 Effective Methods

this is how to remove hard water spots from cars
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It’s annoying to see water stains that just seem to stick to your glass window. These nasty spots don’t go away no matter how hard you try. They are difficult to remove because the water residue used to wash your car leaves alkali mineral deposits. Since the mineral contains chemicals, these marks often become permanent.

To get rid of these water stains, here are four methods that will teach you how to remove water spots from car glass.

4 Method Strategy

Method No. 1: Use Vinegar

Since water stains are alkali, you will need to neutralize it using acid to remove the stain. Experts recommend adding half water and half white distilled vinegar in a squirt bottle to remove the stain. If the watermark seems hard to remove, you may add more vinegar than the water.

Once the solution is ready, use the bottle to spray the vinegar solution on the water marks. Just make sure to douse the entire area. You may also spray the solution two or three times.

Take a rough towel and soak it with the solution. Once the towel is soaked thoroughly, spread it over the glass. You can hold the towel over the stain and let the water soak through the towel.

Depending on the position of the stains and the angle of the glass, let the acidic vinegar to work on the alkali water stains. If it’s not possible, you can reapply the solution by repeating the above steps. Once satisfied, wait until the solution is dried completely.

After a few minutes, take a dry towel and rub it against the stain. While rubbing the towel, it’s important to apply pressure gently. If you rub too hard, it may damage the car window.

A car free of hard water spots
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Method No. 2: Use Vinegar

While you can easily find white distilled vinegar in the market, there are a variety of household products that you may use instead of vinegar. The most common among these is lemon, which has very similar chemical properties to vinegar.

To make the job easier, it’s practical to use fresh lemon. Try to avoid lemon juice bought from the market and other unnatural products. You may squeeze the lemon on the watermark as you see fit. Make sure that the entire spot is covered by the lemon juice. 

If the lemon leaves residue and peels, leave it on the surface as it will help soak the spot with additional acid. Once fully soaked, you can use a towel to remove the spots. After removing the water spots, just follow the above guidelines on using the towel to dry the glass surface.

Using essential oils such as citrus or orange are also beneficial. As a first step, dilute the oil by mixing it with water. If the stain is hard, you can add more oil to make a strong acidic solution. 

Once ready, apply the oil directly to the glass and repeat the procedure if needed. Let the oil dry before using a towel to gently scrub-off the stains. Unlike vinegar and lemon, it’s important to use the towel very gently because scrubbing hard over an oil surface will make things uglier.

If you don’t have the essentials at home, you can even use toothpaste to clean the water stains on the glass. It may seem odd but chemicals inside our toothpaste are made to remove stains, which is the primary reason for using toothpaste. You may cover the entire area with the toothpaste. 

Unlike vinegar and other liquids, toothpaste will likely stick to the glass to some extent. Use a thick paste to make it stick to the water stains. The idea is to allow the surface to absorb as much paste as it can. After a minute or two, you can use a towel to gently scrub the surface.

Method No. 3: Use an Abrasive Cleaner

Abrasive cleaners are also used to clean the water stains from the car glass. You can find a lot of brands in the supermarket. Abrasive cleaners are found in a liquid form or powdered form. You should select a cleaner in the powdered form because the powder tends to stick to the glass surface if a liquid is applied before sprinkling the water.

Before applying the abrasive cleaner, spray water on the car window. For additional power, you can also douse the water stain with a diluted solution of vinegar.

In the next step, sprinkle the powder on the wet surface. Cleaners in powdered form have holes in the container. If you can’t find an abrasive cleaner, you can use baking soda and use a sifter to sprinkle the soda on the watermark.

Unlike other methods, you will need to scrub harder when using an abrasive cleaner. To remove the tiny particles on the window, you will require a little more effort than scrubbing a liquid.

Once the water stain is removed, make sure to put water on the exact spot. Unlike other substances, abrasive cleaner leaves a residue, which can harm the glass. Once the spot is washed, use a dry cloth to clean the glass surface.

It’s also not unusual to use a fine-grade abrasive glass cleaner to clean the car window. Look for a window scrubber marked “0000” for better results.

Method No. 4: Use a Branded Product

If nothing works, you should try commercial products, which are specifically marketed to remove stubborn water marks from the glass. There are a variety of glass cleaners available in the market such as Windex, CLR, and Lime-away.

After buying any one of the glass cleaners from the market, follow the directions on the bottle. Since these products contain chemical solutions, it’s not recommended to use it just like other household products described above. The presence of a strong chemical means that you should let the liquid soak in completely.

Similarly, some of these glass cleaners may not require you to scrub the surface with a towel. Instead, it’s better to wipe away the residue gently and repeat the procedure three or four times. You should also try to wear a safety glass because the chemical can harm your skin.

After the glass stains are removed, don’t forget to clean the area with vinegar, lime, or citric. You will need it because glass cleaners leave a strong residue of chemicals on the window, which can create unnecessary marks if left untreated. Just like other procedures, make sure that the window is dried thoroughly.

Before and After Water Spots
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How YOU Can Prevent Water Spots From Forming

If you work near a chemical factory or your vehicle comes in contact with water containing chemicals, the formation of water stains can quickly get very annoying. Under these circumstances, the following steps will ensure that water spots are removed before they become a problem.

1. Whenever you see water droplets on the car glass, make sure to remove them using a dry towel. If the water is accumulated in cracks and other hard-to-reach corners, use a simple water suction device, which will ensure that areas around the car glass do not become rusty.

2. Don’t ignore water stains because spots are easier to clean if they’re removed within a few days after the formation. If you find such stains, the easiest method is to use one of the household methods of applying lime or vinegar on the car glass.

3. If you want to protect your car glass in the future, it’s better to use a few drops of essential oils such as citrus and orange mixed with water. After applying the solution, just make sure to dry the car glass completely.

Conclusion: Safety and Precautions

  • Sometimes, people treat their car glass with oil-based cleaners. They use such cleaners to prevent water stains from forming on the glass window. However, you should be very careful when using oil-based cleaners because oil residue can often interfere with visibility.
  • If you’re using a cleaner bought from a store, read the printed label to ensure that the chemicals do not damage your skin.
  • When treating hard stains, it’s better to wear gloves when using a high concentration of these acidic solutions.
  • Always keep your hands and face away from the glass cleaner. If you come in contact with a solution, make sure to wash yourself. After using the glass cleaner, use soap to get rid of any chemicals.
  • Make sure that you’re in an open space. Sometimes, the strong acidic particles interact with indoor air creating a harmful and hazardous environment.
  • Never ignore the safety precautions and instructions on the label of the store-bought glass cleaner. Always follow the directions on the glass cleaner because the solution is designed to work in a specific pattern.

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