Staining vs Etching

Posted on April 28, 2022 by Surface Care PROS Support

Staining vs Etching

Two very common discolorations that can happen to natural stone are staining and etching. While they may appear to be similar, they are really two completely different things. The restoration process for each one is different.

What is a stain?

A stain happens when a substance like spaghetti sauce, coffee or red wine is left on the stone long enough for it to soak into the stone pores and cause discoloration. A stain usually darkens the stone. When you rub your hand over it, you can’t feel it. (Just like when you spill something on your shirt and don’t treat it right away).

Can staining be prevented? Yes!

Staining can be prevented by:

Having your tops sealed at initial installation.
Cleaning up all spills right away.
Using a stone-safe cleaner to perform routine cleaning. Some stone-safe cleaners have a bit of stone sealer in them. (Never seal over a stain. That locks it in place and makes it much more difficult to remove).
Periodically having your stone deep cleaned and resealed.

What can I do if I get a stain on my stone?

Don’t panic. Most stains can be removed successfully. Here are some quick tips:

Figure out what kind of stain it is. Knowing what it is helps to decide the correct treatment.
Consult our Stain App under the Resources tab on this site.
If you are unsure or if the stain did not come out, please contact us.

What is etching?

Etching happens when something acidic, like vinegar, strong cleaning solutions, lemon juice, or strawberries, is left on the stone long enough for the acid to actually eat away some of the surface minerals of the stone. An etch will usually lighten the stone and will feel rougher to the touch than the rest of your stone surface. The etched area will also lose its shine and appear duller than the surrounding polished areas.

Can etching be prevented? YES!

Etching can be prevented by:

Cleaning up all spills immediately.
Using coasters under glasses.
Using pH-neutral or stone-safe cleaners.
Not relying on stone sealers. Sealing your tops will not prevent etching. Sealing only helps prevent stains.

What can I do if my stone gets etched?

Again, don’t panic. Here are some quick tips:

If the area is small or the etching is minimal, you may be able to use a stone polishing compound to remove the etch. Consult our Stain App for detailed instructions.
If the etching is severe, contact us. You don’t want to risk making it worse.
If there is a stain in the etch, treat the stain first and then the etch.

Natural stone is beautiful and very versatile, but sometimes damage will happen. The great thing about natural stone is that most stains and surface damage can be removed. With the proper natural stone restoration processes, your stone can look beautiful for years to come.

By Sharon Koehler. This article is one of a series of articles written and published on behalf of Surface Care PROS Partners.

What gives granite its shine?

Posted on March 26, 2022 by Surface Care PROS Support

Granite is a composite of magma and different kinds of minerals such as quartz, feldspar, amphiboles, and mica. The mineral mica is found in a lot of granite, and it is one of the things that gives granite a shimmery shine in certain places. Whether you already have granite countertops or other granite surfaces or if you’re thinking about having granite installed, here are a few things you should know about mica.

What is mica?

Mica is a highly reflective natural substance that forms in sheets, like the pages of a book. It ranges in color from clear to black. If you have granite, then you more than likely have mica to some degree. Delicatus White, Volga Blue and Cosmos are examples of granites that have a bit more mica than most. A lot of mica can make a slab incredibly beautiful, but it can potentially cause some issues.

Potential Problems With Mica

The BIG issue is that mica is brittle. When we think about the granite, we think of durable, hard, rock. Due to mica’s brittleness, there may be some fabrication issues with granite that has a high mica content. When mica gets cut, it breaks, causing crumbling, pitting, and flaking. Fabricators may charge you extra to fabricate slabs with a lot of mica, because they know they will have to repair the slabs during the fabrication process.

If your granite countertop has a lot of mica, think about going with a simple edge like a pencil round or eased edge. A triple pencil or waterfall edge takes more fabrication and opens up more edge surface for mica to chip out, both before and after install.

What happens after the install?

Maybe nothing. Maybe some chipping. One day when you are doing your routine clean up, you may notice the sponge catches on a rough, flaky area that you never felt before. If this happens, don’t worry. Your granite countertop is not falling apart. More than likely, what has happened is that a piece of mica has chipped out.

If routine cleaning or normal wear and tear cause pieces of mica to flake out of your countertop, you can call your stone restoration technician to fix the spot. In most cases, there won’t be any problem with the repair, however, repair can be difficult or impossible for very large or awkwardly placed chips. Also, be aware that there is nothing any stone restoration contractor can do to prevent future chips.

What should you do about mica?

There is a myth that applying a sealer to granite will help prevent mica from chipping. This is simply not true, however, you can discuss other protection options with your stone restoration technician or fabricator. They can take into consideration your particular stone, the environment where it is or will be installed, your budget, and intended use and then make a recommendation for a protective treatment or film to help prevent chipping. This can be applied to a brand new installation or an existing one.

For new countertops, your fabricator will know if any shine on the granite is an abundance of mica or something else. If the shimmering beauty it creates is worth the possible occasional chip, then everything is okay. If not, you can always look at colors that contain a little less mica.

This article is one of a series of articles written and published on behalf of Surface Care PROS Partners.

Are Natural Stone Floors Slippery?

Posted on March 10, 2022 by Surface Care PROS Support

Are Natural Stone Floors Slippery?

We’ve all seen “SLIPPERY WHEN WET” signs posted at entry ways of industrial, commercial, and retail properties. Falls are completely avoidable, yet incredibly common. Sadly, they are the second leading cause of unintentional injury-related death, according to the National Safety Council. If you have natural stone floors or are considering having natural stone floors installed, you may be wondering whether this surface material is slippery. This article clears away misconceptions about the slipperiness of natural stone and provides suggestions regarding both new and existing installations.

The Physics of Slips

Slips are based on two surfaces, the flooring material and the shoes one is wearing (or bare feet). Just a bit of wetness between the bottom of a shoe and certain types of flooring can pose a very real hazard. You may have seen cartoons where a character slips on a banana peel. In real life, wetness on floors has a banana peel affect, whether the wetness comes from a spill, a pet accident, foot traffic on a rainy day, or even moisture from condensation. There are things you can do to minimize the risks, such as placing heavy duty mats near entry ways, being hyper-aware and vigilant about wiping up damp spots, and placing warning signs in conditions where wetness is likely to occur.

Natural Stone, Terrazzo, and Concrete

When it comes to natural stone, terrazzo, and concrete, the more polished and glossy the surface is, the less coefficient of friction (CoF) there is, that is, the more slippery the surface is. Likewise, if the stone has a honed or textured finish, it will have a higher CoF, which can minimize the likelihood of a slip and fall accident. If your floors get slippery when wet, talk to your natural stone technician. There are solutions available.

Professional Solutions

If you are having new stone installed, and you have your heart set on a reflective finish, you may want to select a lightly polished or highly honed finish instead of a high polish. For existing stone, your stone restoration technician can apply a treatment or refinish the floor to reduce the slipperiness. The tricky part is minimizing slipperiness while also preserving the reflective appearance of the stone. The more reflective you want the finish to be, the more ongoing maintenance will be required. Your stone restoration technician can make recommendations on the frequency of maintenance, depending on the type of stone you have, how much traffic it gets, and how determined you are to keep a finish that is inherently slippery. The bottom line is the rougher the finish, the less slippery the floor tends to be.

No Guarantees

As previously mentioned, why someone might slip involves two surfaces, but many factors can contribute to why someone might slip. For example, is there something on the floor or the bottom of a shoe, such as grease or residue from a cleaning solution? How much grip does the bottom of the shoe have? Is the pedestrian paying attention and being mindful or haphazardly moving along? Are there distractions in the environment, such as noise or poor lighting? Has the floor been properly installed and maintained? Stone restoration technicians can improve the slip resistance of your floor, but there is no guarantee someone will not slip and fall.

This article is one of a series of articles written and published on behalf of Surface Care PROS Partners.

Is my countertop quartzite or marble ?

Posted on February 11, 2022 by Surface Care PROS Support

In recent years, there have been complaints from consumers who thought they had purchased quartzite for their countertops because of their its unique durability. Quartzite will not etch (a dullness of the surface) or become easily scratched. Later, when their tops are etched and scratched, they learn the hard way that their tops are actually marble. Marble is a beautiful stone and in the right environment an ideal choice. But for kitchens and other places where the countertops are exposed to high use and acidic liquids, without being specially protected, marble will become damaged and will need to be professionally honed and polished to restore that brand new look. This article explains the difference between quartzite and marble and how to tell what countertop material you truly have.

About Marble

Marble is a metamorphic material that contains an abundance of the mineral calcium carbonate, which is soft and chemically reacts to acidic substances. This means marble is very susceptible to acid etch damage. Heat, pressure, and other geological forces destroy or modify the texture and structure of limestone or dolomite rock, resulting in a new form of rock known as marble. When the limestone or dolomite are very pure, the resulting marble is white. When the limestone or dolomite is mixed with clay, iron oxides, or other minerals, the resulting marble may have swirls, veins, or varieties in color.

About Quartzite

Quartzite is also a metamorphic rock but differs from marble in that it does not contain calcium carbonate. This means it is not susceptible to acid etch damage. Quartzite is formed when heat, pressure, and other geological forces destroy or modify the texture and structure of quartz sandstone. When the quartz sandstone is very pure, the resulting quartzite is white or gray. When the quartz is mixed with iron oxide or other minerals, the resulting quartzite may have streaks, lenses (transparent pieces), and varieties color.

Tests to Determine Stone Type: Marble or Quartzite

Marble and quartzite can be very similar in appearance. Fortunately, there are a couple of simple tests one can perform to tell the difference between them: the scratch test and the acid test. If you attempt to perform either of these potentially destructive tests, you should obtain a sample or use a piece of scrap countertop material to perform the tests. If neither are available to you, test in an inconspicuous spot knowing that the test may cause damage.

The Scratch Test

In order to understand how the scratch test works, we need to provide a little more science. The hardness of minerals can be determined by what is called the Mohs scale of mineral hardness. This scale rates minerals from the softest mineral, being a 1, to the hardest mineral, being a 10. Calcium has a Mohs hardness of 3. Quartz has a hardness of 7. A standard kitchen knife has a hardness of about 6.

Use a knife to scratch the surface of a countertop. The outcome indicates the hardness of the mineral. If the knife leaves a scratch, the stone is likely marble. If there are no scratches, the stone is likely a much harder stone like quartzite or granite.

The Acid Test

Calcium reacts to acids, causing etch damage. The etch may or may not have texture, depending on the severity of etch damage. Common acids will not affect quartz. Vinegar or a lemon wedge can be used for the test. Place the lemon wedge or a drop or two of vinegar on the stone and allow several minutes dwell time. Wipe up the excess. If it leaves a dull spot, that a positive indication for the presences of calcium, which indicates the countertop is marble and not quartzite.

What You Need to Know If You Have Marble

If you discovered you have marble, not quartzite, by way of these tests or because you already have countertops installed that have etch marks or scratches, rest assured that you are not doomed to live with unsightly damage or replace your countertops. Professional stone restoration contractors can hone and polish your countertops, virtually erasing damage and leaving your tops with a beautiful, pristine finish. Your contractor can also offer solutions for protection appropriate for your countertop material.

This article is one of a series of articles written and published on behalf of Surface Care PROS Partners.

Will the Sun Fade My Stone Countertops?

Posted on February 10, 2022 by Surface Care PROS Support

As the seasons change, so does the amount of sun beaming through your windows and bringing its UV rays into your home and onto your countertops. Unfortunately, prolonged direct sunlight can cause damage, manifesting as fading or darkening on some granite countertops.

“Natural stone treated with resins are vulnerable to damage from direct sunlight,” says Fred Hueston, Chief Technical Director of Stone and Tile PROS. Applying resin to natural stone is now becoming commonplace because it strengthens the slab, allowing companies to eliminate waste from breakage during manufacturing and shipping.

Keep in mind that engineered stone, or quartz surfaces, as they are often called, are bonded with resins, making them susceptible to this same sort of sun damage as well.

PREVENTING FADING

Your natural stone countertops are an investment and you want to keep them looking beautiful for years to come. You can always check with your fabricator to see if your stone has been treated with resins, but it’s always a good idea to play it safe. Taking some simple precautions to minimize the time your countertops will be exposed to direct sunlight will go a long way. Simply closing the blinds during peak sunlight hours can be enough to prevent the damage.

For outdoor kitchens, consider a cover for your countertops when they are not in use. There are also some new innovative products on the market that can be applied to stone that act as a sunscreen to block UV rays.

ALREADY HAVE DAMAGE?

The good news is that natural stone that has faded by sunlight can be repaired. Stone that is not resined can be honed and repolished by a professional restoration company to bring it back to life. If it is resined, there are chemical dyes that can be applied to return the stone’s color.

If you have questions or concerns about your natural stone fading or darkening, contact us today.

This article is one of a series of articles written and published on behalf of Surface Care PROS Partners.

Refinishing Stone

Posted on February 2, 2022 by Surface Care PROS Support

The Appearance of Stone Can (and Can’t) Be Altered

Natural stone, a restorable surface material, is complex in comparison to restorable man-made materials, such as engineered stone, solid surfaces, and concrete. Unique as a snowflake or a fingerprint, natural stone requires customized restoration methods. It all depends on the composition of the stone, where it is installed, and how it is used. When homeowners want their stone restoration technician to change the appearance of their stone in some way, the task may or may not be possible to accomplish, and in some circumstances, it may be inadvisable. Let’s look at the various ways the appearance of stone can be altered.

But First… About DIY vs Professional Services

The appearance of stone can be altered subtly or in sweeping, dramatic ways. Subtle alterations can sometimes be successfully accomplished with DIY methods. For example, one might use a marble polishing compound to easily remove a minor etch mark on marble with a polished finish. More extensive changes should always be entrusted to your professional stone restoration technician.

Changing the Level of Shine or Finish

Professional stone refinishing entails using various methods to alter the reflectivity and texture of the surface of stone. If your stone is polished, but you would prefer that it have a soft, honed finish, or if your stone has a satin finish, but you would prefer a glossy, reflective surface, in most cases your professional stone restoration technician can make it happen.

There are a variety of natural stone finishes possible, including:

- Honed / Satin / Matte – soft, velvety shine
- Polished – glossy, mirror-like shine

Brushed / Antiqued – looks textured, but is smooth to the touch
Texture / Hammered / Tooled / Leathered – varying degrees of roughness, depending on the finishing technique
Custom – a personalized combination of other finishes
Coatings / Enhancers / Etch Protection Treatments or Films – alter the shine or finish

You Can’t Always Get What You Want

Your stone restoration technician may recommend against certain types of finishes in certain circumstances. For example, natural stone needs to “breathe” and for some applications, coatings could cause spalling, pitting, flaking, or other damage to the stone. Here’s another example. For sanitary reasons, textured finishes are not suitable for food preparation areas, because the unevenness of the surface can make cleaning difficult. The bottom line is that most of the time, you can get the finish you want, but sometimes the finish you want may not be appropriate.

Changing the Color or Darkness / Lightness

Are you unhappy with the color of your stone? Perhaps exposure to UV rays have made the stone fade or caused the resins in the stone to become discolored. If your stone is stained or dyed, and some of the color is inadvertently removed, then the untreated stone will show through, giving the stone a splotchy appearance. Your stone restoration technician may be able to reapply stains or dyes. Another option might be to hone the stone to remove the stains or dyes, revealing the brand new stone underneath and then refinish the stone to the finish of your choice.

Enhancers do not actually change the color of the stone, but they do intensify the color of stone.

Sometimes there are properties inherent in the stone that affect its apparent color in different lighting scenarios. For example, if granite contains a mineral called hackmanite, then certain spots will change color from pink to gray or another light color, depending on how much light exposure it gets. With some types of stone, a slab viewed from one end of a room will appear to be a different color than when it is viewed from the other end of the room. In cases like these, stone restoration contractors can’t really do anything to resolve the problem. You may, however, try experimenting with light fixtures and controlling the level of natural light exposure.

Removing Stains, Spots, or Discolorations

When it comes to stains, spots, and discolorations, things can get really confusing. A stain is a discoloration, but a discoloration may not be a stain. The easiest way to sort things out is to remember that a stain on natural stone will always be darker than the stone itself. Most stains can be removed. If the discoloration is lighter than the stone, then this is an indication that the it is a mark is corrosion (etching) caused by an acidic substance, or a caustic mark (bleaching) caused by a strong base (alkali). Stain removal methods will be ineffective on such stone damage.

The good news is that whether your stone is stained or damaged, in most cases the problem can be resolved. Your stone restoration contractor can instruct you on cost-effective DIY methods for stain removal or attempt to remove the stain for you. If your stone is damaged, it can likely be repaired and restored.

As mentioned previously, some spots or discolorations are inherent in the stone itself. One must either learn to appreciate the beautiful imperfection of natural stone or have it replaced.

Repairing Chips, Cracks, Holes, and Other Damage

Natural stone damage can happen in many ways, from scratches caused by dragging furniture or cracks caused by dropping a heavy object to signs of wear created by normal foot traffic or use. Your fully trained and qualified stone restoration technician can restore the finish and repair the damage, in most cases. They may grind, hone, polish, use color matched polyester or epoxy to fill in missing areas, replace tiles, and other methods, depending on what problem needs to be resolved.

Sometimes small imperfections or naturally occurring features in stone are mistaken for damage, even though they have no effect on the structural integrity of the stone. These include fissures or veins that look like cracks, angular fragments of stone, inconsistent veining, holes, pits, irregular shapes or inconsistencies in thickness, mineral deposits, and other features.

Moving Seams, Altering Edges, and Other Major Changes

After natural stone countertops have been installed, major changes are either difficult or impossible for a stone restoration technician to accomplish. Fabricators, that is, the ones who size and install countertops, use very specific equipment to do their work. Restoration contractors are not equipped to rearrange or re-profile countertops, and although fabricators are equipped, their work would entail removing the countertops completely, moving them back to the shop, and then reinstalling them. This labor-intensive effort would cost more than simply having the countertops replaced and could result in irreparable damage to the stone.

Contact us to discuss the appearance of your stone. We can take into consideration the look you have in mind, the composition of the stone, where it is installed, and how it is used, and then make the best recommendations.

This article is one of a series of articles written and published on behalf of Surface Care PROS Partners.

Ingestible Countertop Material?

Posted on December 30, 2021 by Surface Care PROS Support

THE SURPRISING USES OF MARBLE

Ingestible Countertop Material?

Most people are familiar with the idea that marble is used for countertops, floors, walls, statues, and decorative items. In the following article from Fred M. Hueston, Chief Technical Director for Surface Care, you’ll discover that marble has many other uses, some of them ingestible! Sit back, relax, and grab some popcorn, because you’re not going to believe what people do with marble.

Garden Lime

Gardeners use lime to raise the pH level of acidic soil, which can help certain plants extract nutrients from the soil. Garden lime is processed from marble. The marble is heated in a kiln, which removes the carbon dioxide from the stone, producing a form of lime called calcium oxide, or quicklime.

Field Marking

In the past, lime was used to mark soccer, baseball, football, and other sports fields. Lime is very caustic, meaning it can cause discomfort or damage if the powder makes its way to a moist skin surface, such as the eyes or sweaty skin of athletes. These days, powdered marble is used as a safer alternative.

Calcium Supplements

Many farm animals require calcium for health reasons and to produce eggs, milk, etc. Farmers mix powdered calcium into animal feed as a supplement. These supplements are nothing more than pulverized marble.

Antacids

If you take an antacid to calm your stomach, you are basically just ingesting powdered marble!

Whiting

Whiting is a fine powder made of marble that is used as a brightener, filler, and even a pigment in many products. It can be used to clean glass after glazing and to shine copper, stainless steel, and other surfaces.

Cosmetics

One of the main ingredients for face powders and blush is pH-neutral calcium carbonate, i.e., marble dust.

Construction Aggregate

Concrete is used for road building and many other uses. Concrete mixtures require cement, water, and an aggregate, such as crushed bits of stone, gravel, or sand. Marble aggregate can be used in concrete.

Neutralizers

Here is a little chemistry lesson. If marble is dissolved in water, it becomes alkaline, which means it increases the pH level of the water. Acid, which is low pH, can be neutralized when marble is added. Marble can be used to increase pH, so it can serve as a neutralizer in swimming pools. It is also used by water treatment plants and other chemical industries.

Your Meds

Many prescription and over the counter drugs use powdered marble as a filler. So the next time you need to take a pill, chances are you will be ingesting some marble.

Paint and Craft Additives

Marble powders are popular in many types of paint, as well as acrylic modeling paste, glue base gesso, and all water and oil dispersed paints.

Carbonated Beverages

Have you ever wondered why there is a tiny explosion when you pop open a can of soda? During the manufacturing process, a can is filled with CO2 dissolved in water. When the can is sealed, the pressure causes a chemical reaction to take place, resulting in carbonic acid. The sound you hear when you open the can is caused by carbonic acid returning to the form of CO2 dissolved in water. The carbonic acid that is used in soda is derived from marble.

Chalk

Sidewalk and blackboard chalk used to be made of marble, but these days, most chalk manufacturers use gypsum.

Marcite and Plasters

Marcite, a sprayed-on coating that is applied to built-in swimming pools, contains marble dust. Many plasters also contain marble dust as their main ingredient.

Groceries

Products containing marble, such as baking powder, toothpaste, dry dessert mixes, dough, and wine, are for sale in your local grocery store. The next time you look at a list of ingredients and you see the word calcium, the product likely contains marble.

Carbon Capture Technology

A study by Industrial & Engineering Chemistry Research reports that one of the most promising technologies to reduce global emissions of carbon dioxide (CO2) is called calcium looping. The process involves scrubbing CO2 from flue gases by using calcium-oxide-based sorbents. You can probably guess what those calcium-oxide-based sorbents are. That’s right. Waste marble powder.

If you ever visit a marble quarry, you will notice a large amount of waste. Thankfully, marble waste is used in many ways.

This article is one of a series of articles written and published on behalf of Surface Care PROS Partners.

How to Remove Ring-Shaped Marks on Marble

Posted on December 6, 2021 by Surface Care PROS Support

How to Remove Ring-Shaped Marks on Marble

Here is a question people commonly ask us: “What causes ring-shaped marks and white spots on marble?” Questions like these usually follow: “Is there a product I can use to get rid of this type of stain?” and “Is there a sealer I can apply to restore the shine and prevent this problem?” Sometimes people believe that when surface damage happens, it means they will need to replace their marble. Let’s unpack these concepts.

The Cause of Ring-Shaped Marks and White Spots on Marble

Some people refer to ring-shaped marks on marble as “water rings.” These marks and spots on marble are likely not stains, but acid etch damage. If the discoloration is lighter than the stone, it is an etch, not a stain. Marble contains calcium carbonate, a substance that chemically reacts with acids in certain types of food and drinks, and this is what causes acid etch damage on marble surfaces.

Product for DIY Etch Removal

A high quality marble polishing powder can be used to remove etch marks from polished marble, as long as the damage is not too severe. Run your finger over the area you intend to treat. If it feels smooth and has no rough texture compared to the surrounding finish, then you can use the polishing powder and a clean white cloth to remove the spots. Note: Marble polishing powder should not be used on marble with a honed / satin-matte finish. Although it will remove mild etch damage, it will also change that area to a polished finish that is inconsistent with the surrounding honed finish. If the etch damage is too severe to handle on your own or your marble has a honed finish, professional stone restoration services can give your marble a like-new finish.

What Sealers Can and Can’t Do

A common misconception is that the impregnating sealers commonly applied to marble countertops can prevents stains and etch damage and restore the shine. If sealing is recommended for your stone, it will simply buy some time to wipe up spills before they become stains, and it should only be applied by your professional stone restoration technician. When impregnating sealer is applied to marble, the appearance of the finish does not change at all. For complete stain and etch protection, as well as elegant finish options, etch protection treatments and protective films are ideal solutions. Unlike impregnating sealers that penetrate into the stone, protection treatments and films form a barrier between marble and acidic substances.

Don’t Replace Your Marble

Replacing etch damaged marble would be costly and completely unnecessary. Use a marble polishing powder to remove etch damage or have it professionally restored. For more information about marble care or stain management, download our free Stone and Tile Care Guide and use our Stain App under the Resources tab on this site. Contact us for specific product recommendations, answers to questions about your marble, or to schedule services.

This article is one of a series of articles written and published on behalf of Surface Care PROS Partners.

How to Remove Shower Calcium Deposits

Posted on October 25, 2021 by Surface Care PROS Support

How to Remove Shower Calcium Deposits

Do you have a white film or scaly buildup on your tile or stone shower? This is caused by calcium deposits, which can be difficult to remove. Here are some DIY solutions you can try yourself before you reach out for professional services.

Why Calcium Deposits Are Usually Found in Showers

Water with a high mineral content can deposit calcium carbonate on your natural stone or tile surfaces. Over time, these deposits build up.

Natural stone and tile applications that get no or minimal water exposure rarely ever get calcium deposits. Examples include entryway walls, fireplace surrounds, damp-mopped floors, and areas of countertops that get little use. However, surfaces that are constantly being wiped may slowly, over a long period of time, become cloudy looking with calcium deposits. Examples include high-use countertop areas (usually near sinks), commercial bar tops, and restaurant table tops.

Bathroom showers are the major problem area for calcium deposits. Every time someone showers, the surfaces are exposed to an average of two gallons of water per minute!

Be Careful

The challenge in removing calcium deposits is avoiding damage to the surface. If you have porcelain or ceramic tile, you can use harsher cleaners than those that can be used on natural stone. You might be able to get away with using mildly acidic cleaners on silicate-based stones, such as granite, sandstone, slate, and quartzite, but if you have calcium-based natural stone, your options are limited. Polished stone may be more likely to require professional refinishing after DIY calcium deposit removal methods than honed stone.

Solutions to Remove Calcium Deposits

The following are DIY suggestions for removing calcium deposits from your natural stone or tile surfaces. WARNING: As alluded to previously, some DIY methods can cause dullness or etch damage to natural stone. You may want to reach out to your stone restoration technician before proceeding.

Use a plastic putty knife to scrape off the excess buildup. Be sure not to use a metal knife, as it can leave marks or scratches.
Saturate the surface with the appropriate cleaner. Allow enough dwell time to soften the buildup. Clean using a white cloth or soft nylon brush.
For tile or stone, rinse thoroughly to remove any cleaning residue. For stone, especially if you used sulfamic acid, follow up with a pH-neutral cleaner prior to the final rinse.

Porcelain or Ceramic Tile

The glazed finish on porcelain and ceramic tiles cannot be ruined with most acidic cleaners, such as lemon juice, white vinegar, soap film remover, and other acid-based cleaners. The exception is hydrofluoric acid. Avoid heavy duty acids, such as HCL and CLR, which pose numerous health risks. If necessary, you may also use a green scrubbing pad on porcelain or ceramic.

Marble and Other Calcium-Based Stone

Stone-safe, pH-neutral cleaners can be used on both polished and honed natural stone. Do not use a green scrubbing pad on polished stone. You might be able to get away with using it on stone with a honed finish, but do so at your own risk knowing that some honed finishes have a higher polish than others. If the desired results are not achieved, use a heavy-duty, non-acidic soap film remover.

Granite and Other Silicate-Based Stone

For granite and other silicate-based stone, use the same methods as mentioned above for marble and other calcium-based stone. If the desired results are not achieved, use sulfamic acid (not to be confused with sulfuric acid), available at home improvement centers.

Professional Cleaning and Restoration May Be Necessary

DIY methods are valuable for regular cleaning and in some cases, more intensive cleaning, but professional stone and tile services achieve dramatic results that cannot be achieved using DIY methods. If you choose to try DIY methods first, feel free to contact us for specific product recommendations. If DIY methods fail to produce the desired results or leave your stone looking dull, we are here for you. Perhaps reading this article makes you realize you have better things to do than spending hours cleaning your shower. Contact us if you would like to schedule professional calcium buildup removal services.

QUARTZITE. QUARTZ. WHAT’S THE DIFFERENCE?

Posted on October 18, 2021 by Surface Care PROS Support

Pinterest, Houzz, magazines, and other kitchen and bath design resources recommend both quartzite and quartz for kitchen countertops, floors, walls, backsplashes, and more. Sometimes people confuse the two materials, given their similar names and appearances, but they are actually very different.

Quartzite

Quartzite is a natural stone. Sandstone that is subjected to heat and pressure forms quartzite. Quartzite’s appearance can be veined like marble, have more solid coloring, look like crushed crystals, or a combination of these features. On the Mohs scale of hardness, quartzite is usually around a seven or eight out of ten, which means it is harder than glass.

Quartzite is also very durable, but subject to staining or etching like most natural stones. Since quartzite is porous, sealing it can help inhibit staining, but sealers cannot prevent etching. There are new solutions now available on the market for quartzite countertop etch protection. Maintenance requirements include frequent cleaning with a stone-safe, pH-neutral cleaner and periodic professional restoration services, which may include honing, polishing, cleaning, and re-sealing.

Quartz

Quartz is a mineral, and in its powdered form, it is the main ingredient for the engineered stone also called quartz. With patterns mimicking marble and other natural stone, quartz requires less maintenance than natural stone. Quartz does not require sealer, because it is not porous, but this doesn’t necessarily mean it is impervious to damage. The good news is that quartz does not damage easily. The bad news is that although quartz is harder to damage than quartzite, once it is damaged, it is more problematic to restore because it is made with colored resin.

Feel free to contact us with specific questions about quartzite, quartz, or other materials.

This article is one of a series of articles written and published on behalf of Surface Care PROS Partners.