Quartzite’s reputation for durability is legendary, but even this natural stone, which is even tougher than granite, needs maintenance to keep it looking and performing its best. With very few exceptions (like soapstone), all varieties of natural stone are porous.
This means that there are tiny natural cavities within the stone, and if these aren’t properly sealed, there’s a risk of water damage, which weakens the stone.
You also run the risk of bacterial contamination, which is a big problem in kitchens and bathrooms! To keep your quartzite countertops in peak condition, here’s what you need to know about maintenance.
Why Quartzite Needs Sealing
Quartzite forms when sandstone is subjected to intense heat and pressure deep within the earth. Over time, this process fuses the quartz grains together, resulting in a dense, incredibly strong rock. However, remember those pores we just mentoned, quartzite contains microscopic pores. These tiny spaces can trap moisture, oils, and other substances if left untreated.
Sealing quartzite closes off those pores, providing a barrier against spills, stains, and bacteria. This is especially important in high-use areas like kitchens, where food and liquids are frequently in contact with the surface. Without proper sealing, even a stone as strong as quartzite can become stained or etched over time.
How Often Quartzite Should Be Sealed
The frequency of sealing depends on the type of quartzite you have, the quality of the initial sealant, and how heavily the surface is used. In a busy bathroom or kitchen, resealing may be needed more frequently, especially if you notice water no longer beads up on the surface.
Some quartzite varieties are more porous than others, which affects how much sealant they absorb and how long that protection lasts. Your fabricator can help you come up with the ideal sealing schedule for your situation!
Caring for Sealed Quartzite
Once your quartzite is sealed, care is straightforward. Daily cleaning with a pH-balanced stone cleaner or mild dish soap and water is usually sufficient. Avoid harsh chemicals, bleach, and acidic substances like vinegar or lemon juice, as they can wear away the sealant or etch the surface.
Even with sealing, it’s a good habit to wipe up spills as soon as they happen. Quartzite is more resistant to etching than marble, but oils and wine can still leave marks if left too long. Trivets and cutting boards are still recommended to prevent scratches or thermal shock from hot pans. These practices help your sealant last longer and keep the stone looking vibrant.
When Do I Re-Seal Quartzite?
It’s easy to tell when your quartzite is due for resealing. One simple test is the water-drop method: place a few drops of water on the surface and wait for about 15 minutes. If the water is absorbed or darkens the stone, it’s time to reseal. If the droplets remain beaded on the surface, your sealant is still doing its job.
Another telltale sign is staining. If food or grease begins to leave behind shadows that don’t wipe away, it could mean your sealant has worn off. Acting quickly and scheduling professional maintenance can help avoid deeper damage.
Keep Your Quartzite Looking Its Best
Quartzite may be one of the toughest stones available, but it still benefits from regular maintenance. With the right care, you can enjoy the beauty and performance of your quartzite countertops for decades. At Marble Granite World, we specialize in natural stone care and can help you with sealing throughout your countertops’ lifespan. Reach out today for a free consultation for your countertop project!