There are only a few options to get rid of these spots. Acetone is a chemical that is too harsh for some surfaces. Hard water stains are deposits of minerals within the structure of the glass. A 10% solution of acetic acid can be purchased generically at pharmacies. It must be diluted with 2 parts water for use on cotton and linen (a pretest is recommended). Acetone is particularly useful when trying to remove stubborn stains from granite surfaces, and using it is simple. Order the Ultimate Hard Water Stain Remover® today and get rid of those hard to remove water spots in your home's kitchen and bathroom. You can try scraping the paint from the fabric but take care not to damage it. You can also use white vinegar and lemon juice. Glass is porous and can actually be manipulated by chemicals. Or you can try buffing the stains out using a … Granite is capable of handling acetone's strength, so acetone can be used to clean granite floors and countertops. We pull out a water glass or gaze out a window, and there it is – a hard water stain. We’ll all been there. It is a clear fluid that can be used to remove stains on silk and wool. (White vinegar is 5% acetic acid and can be used as a substitute for the stronger solution.) For tough hard water stains, add some ammonia to your cleaning mixture. After you've tried the other methods listed, including the overnight baking soda paste soak, brush some acetone nail … While water and other colorless liquids can evaporate quickly and thus not leave a stain (even on an unsealed slab), liquids such as oil and wine are rich and colorful, and they do leave behind a stain. The main problem homeowners face in the battle against hard water is a safe and effective way to remove stains on their windows. How to remove hard water stains from granite. Old water-based paint stains are nearly impossible to remove. Each can contains 6 ounces by weight and is capable of removing stubborn hard water stains on up to 700 square feet of glass, granite, porcelain tile, sinks, toilets and stainless steel sinks. Deciding how to remove hard water stains from glass can be a frustrating experience, and if we don’t know which cleaning products make the best DIY glass cleaners for hard water, we can find ourselves cleaning and cleaning without removing the unsightly hard water stains. Oil, additionally, does not evaporate. Hair dye is on the list of stains that could be permanent, but with a little help from some nail polish remover, you could achieve the near impossible. To remove hard water stains from glass, rub the stains with salt water and a clean cloth. Water stains are unavoidable on kitchen countertops.