A water stain on natural stone is a small mark or discoloration that happens when water sits on the surface of the stone for too long. It looks like a light brown or tan ring around the stone and can be anywhere from a few millimeters to several centimeters wide.
So now that you know what a water stain is and what it looks like, what is the main cause of water stains on natural stone?
The leading cause of a water stain on natural stone is moisture. When water comes into contact with a porous surface, it can seep into the pores and create an area of concentrated dampness. This can lead to the development of mold and mildew, which in turn creates a discoloration that looks like a water stain.
Below we’ll cover the most common cause of water stains on natural stones and how to prevent them.
The Most Common Cause of Hard Water Stains
A water stain on natural stone can be caused by several factors. The most common cause is the presence of mineral deposits, such as calcium or iron, in the water. These minerals can build up on the surface of the stone and leave a stain when the water dries. Another possible cause of a water stain on natural stone is the use of acidic cleaning products, which can etch the surface of the stone and cause discoloration or stain. Finally, water stains on natural stone can also be caused by water that had seeped into the stone and left a mark when it evaporated.
How To Prevent Water Stains from Natural Stone
There are several steps you can take to prevent water stains on natural stone:
1. Wipe up spills immediately: If you spill water or other liquids on your natural stone surface, make sure to wipe it up immediately. This will help prevent the liquid from seeping into the stone and leaving a stain.
2. Use a pH-neutral cleaner: Avoid using acidic cleaners on natural stone, as they can etch the surface and cause discoloration. Instead, use a pH-neutral cleaner specifically designed for natural stone.
3. Dry the surface thoroughly: After cleaning your natural stone surface, make sure to dry it thoroughly. This will help prevent water stains from forming.
4. Use coasters and trivets: To protect your natural stone from water stains, make sure to use coasters and trivets when placing beverages or hot dishes on the surface.
5. Seal the stone: Sealing your natural stone can help protect it from water stains and other types of damage. Make sure to use a sealer specifically designed for natural stone and reapply it according to the manufacturer’s recommendations.
How To Prevent Rust Stains from Natural Stone
There are several steps you can take to prevent rust stains on natural stone:
1. Wipe up spills immediately: If you spill water or other liquids containing iron on your natural stone surface, make sure to wipe it up immediately. This will help prevent the iron from reacting with the stone and leaving a rust stain.
2. Use a rust remover: If you have a rust stain on your natural stone surface, you can try using a rust remover specifically designed for use on natural stone. Be sure to follow the manufacturer’s instructions when using the product.
3. Use coasters and trivets: To protect your natural stone from rust stains, make sure to use coasters and trivets when placing metal objects on the surface.
4. Seal the stone: Sealing your natural stone can help protect it from rust stains and other types of damage. Make sure to use a sealer specifically designed for natural stone, and reapply it according to the manufacturer’s recommendations.
5. Avoid using acidic cleaners: Acidic cleaners can etch the surface of natural stone and make it more prone to rust stains. Make sure to use pH-neutral cleaners instead.
How To Remove Water Stains from Natural Stone
There are several methods you can try to remove water stains from natural stone:
1. Use a pH-neutral cleaner: First, try cleaning the surface with a pH-neutral cleaner specifically designed for natural stone. Be sure to follow the manufacturer’s instructions when using the product.
2. Use a mixture of water and baking soda: Mix a small amount of water with a few tablespoons of baking soda to create a paste. Spread the paste over the water stain and let it sit for a few hours before rinsing it off with water.
3. Use a poultice: A poultice is a paste made from a cleaning agent and a absorbent material, such as flour or diatomaceous earth. To create a poultice, mix the cleaning agent and absorbent material together to form a paste, then spread it over the water stain. Cover the paste with plastic wrap and let it sit for at least 24 hours before removing it and rinsing the surface with water.
4. Use a commercial rust remover: If the water stain is caused by mineral deposits, such as calcium or iron, you may be able to remove it with a commercial rust remover specifically designed for use on natural stone. Be sure to follow the manufacturer’s instructions when using the product.
5. Use a mild abrasive: As a last resort, you can try removing the water stain with a mild abrasive, such as a soft scrub pad or fine-grit sandpaper. Be sure to test the abrasive in an inconspicuous area first and use it gently to avoid damaging the stone.
In Sum
There are a number of causes of water stains on natural stone. The most common cause is improper installation of the stone and sealant. If the sealant was applied too thinly, or if it was not applied properly to the edges of the stone, it can allow moisture to get through and stain the surface. Another common cause is when people clean their stone with too much pressure or with a cleaning solution that contains bleach or acid. If you clean your natural stone with too much pressure, you can scratch its surface. And if you use a cleaning solution that contains bleach or acid, it can react with the minerals in the stone to cause staining and discoloration. Finally, some types of stones naturally contain minerals that can stain surfaces they come into contact with—this is especially true of travertine and limestone.
Time to Restore your Floors?
If you don’t want to mess with fixing stains and are tired of your floors looking dull and drab, a shining, new floor is possible without replacing it. That’s when professional stone restoration services step in. A stone and tile floor restoration service will make your floors new again in no time.
Restore-A Floor is a Michigan based stone floor and tile restoration company that can tackle any stone floor dilemma with amazing results that last. Our unique and customized stone refinishing techniques and grout cleaning methods use superior products that ensure floors, countertops, and walls can look new again. It’s time to get rid of stains and wear so you can enjoy the natural appeal of your stone and be glad you had them restored. Call to set up a Free Estimate today!