When you don't seal your countertops, they tend to quickly absorb food and liquids, leading to deep stains. Since the countertops are bare, the stains develop within a matter of minutes, even if you are quick to wipe the spill. The countertops not only absorb liquids, but grease and pigments as well.
No, granite is a natural, porous material which can absorb liquids such as water or oil. When absorbed, liquids can leave a dark colored spot in the stone. Water will evaporate in time but oil substances can leave stains if not wiped up within minutes.
You might think something as natural as water wouldn't be a problem, but it is. Without sealing, water will penetrate the stone and leave behind water marks, some small, some large, giving your stone a perpetually dirty appearance.
Ubatuba granite most often does not need sealing because it is typically a very dense, low-absorbency stone that is naturally stain-resistant.
The good news is sealing granite is an easy do-it-yourself project. Many homeowners seal their granite counters once or twice a year, although you can seal them more regularly if you wish because it is not possible to over-seal natural stone.
Most granite is very stain resistant and does not “require” sealing. However, sealing is an added precaution, and many fabricators and installers do recommend it. Quality Granite & Marble typically makes this determination, and applies sealer when needed.
yes, it is possible to apply a permanent bond sealer. A couple companies (Sensa, Permashield) are offering granite with a permanent sealer pre-applied "at the factory".
ANSWER: You should seal granite when needed and not based on some arbitrary schedule. Most (but not all) granite countertops will need sealing upon installation and then resealed every 1 - 5 years depending on the color and porosity of the granite, the quality of the sealer, and proper sealant application.
Water that contains high amounts of iron, for example, may deposit this mineral inside the stone. This permanently darkens and discolors the granite because the mineral will not evaporate with the water.
Over time (usually in excess of one year), improper cleaning (such as not completely removing food and beverage spills or residue contained in smoke from cooking) attacks the granite's color and clarity. As a result, the granite's surface becomes much darker in color compared than when it was new.
Sealed granite countertops are much less likely to absorb water, however if water is left on your countertop for long periods of time, it can cause a darker spot. Oftentimes, water will just dry and evaporate but if it's been left to sit for a long time, it might needs a bit more help.
To keep granite countertops clean, use a microfiber cloth to dust off the surface. Often a microfiber cleaning cloth, even a dry one, is all that is needed for basic cleaning. For times when spills or daily life happen, try to wipe down the granite countertop daily or as needed using only water.
It's Important to Clean Between Sealings
In general, we recommend using a washcloth or sponge and a gentle soap and water to remove dirt and food debris. Dry thoroughly after washing with a clean, dry towel. Avoid harsh abrasives or highly acidic solutions which can scratch and dull your granite countertops.
Granite countertops should last you at least 10-15 years if maintained well. While you can take steps daily to prolong the life of your granite; some professional help is needed to restore and refinish in order to ensure your granite surfaces last as long as possible.
Quartz is one of the most appealing and most popular choices for a new kitchen counter because of its durability. Unlike granite, quartz doesn't need to be sealed on a regular basis in order to prevent staining. The nonporous surface makes it an ideal choice for food preparation and maintenance.
Second, a typical impregnating granite sealer like these recommended marble & granite sealers should not darken or change the color at all. A "color-enhancing" sealer will darken the color, but they wouldn't be applying a color-enhancing granite sealer in this case.
If you're up to the task, you can purchase sealant for around $20 from most hardware stores. If you're interested in having your countertops sealed by a local granite countertop pro (which can last longer), expect to pay between $170 to $350.
No, not all granite countertops need a sealant. Sometimes, granite comes sealed from the manufacturer. For instance, here at Atlantic Granite & Marble, we use a 15-year lifetime sealer. Granite is an igneous rock that contains various natural stone materials that can be prone to stains and scratches.
Homeowners don't need to worry about damaging their countertops with everyday use because granite is quite heat resistant. Placing a hot pan on a well-maintained granite slab will not cause it to crack or weaken. Just remember that repeatedly placing a very hot pan on the same spot may cause granite to discolor.
All acidic foods are dangerous for granite countertops, including citrus juice, wine, vinegar, and beauty products like nail polish remover. Acids can etch the surface, degrading its seal and exposing the vulnerable stone underneath to more stains.
Granite is most susceptible to cracks during shipping and installation. Normal use will not crack granite.
In some cases, particularly with oils or grease, liquid left on the counter can soak in and create a stain. However, even when this happens, the stain is not necessarily permanent. Most of the time it can be removed using a topically applied paste that draws out any moisture from the stone.