Quartzite is a natural stone and a famous choice for countertops, roofing, flooring, and stairs. It is a porous material that requires sealing annually or more often if installed in a high-traffic area.
Natural stone sealers are commonly available online and in hardware supplies stores. However, the problem comes when you don’t know how to select the right sealer for quartzite. The best quartzite sealers protect against stains, discoloration, and scratching from everyday use. They also enhance quartzite’s beauty and increase its life.
The sealants reviewed here are the ones you need for your quartzite countertops. Let’s check out the 6 best sealers for quartzite.
Buying Guide: Factors to Consider Before Buying a Quartzite Sealer
Sealer Type: Topical vs. Impregnating
The most important thing to consider is the type of sealer you want for your quartzite surfaces. Topical sealers are coatings that protect the stone’s surface from water, food, and soil. Impregnating sealers or impregnators can be water-based or solvent-based. They penetrate the surface and become a repellant.
Topical sealers are initially inexpensive and easier to apply. However, they are soft, scratch easily, and show traffic patterns. Hence, you’ll need more coats and buffs in the long run, making the process costly and time-consuming.
On the other hand, impregnators are costly, difficult to apply, and have longer working times. An impregnator penetrates the stone’s surface, so you don’t need frequent coating compared to a topical sealer. Most impregnators have VOCs, and it is not eco-friendly. You may want to take extra safety measures while working with impregnators.
Make sure you don’t use both together. If the surface is coated with an impregnator sealer, it will repel most topical sealers. The best way out is to consult your fabricator about the right sealant for your quartzite surfaces.
Type of Floor
Most natural stone sealers are good for quartzite, granite, marble, limestone, and slate. However, you must always check on the packaging and check user reviews to determine if homeowners have used the sealer on quartzite.
Never use a non-natural stone sealer on quartzite surfaces, as it may damage the finish.
Larger bottles (gallon packs) are economical in the long run. However, small packing is best if you have limited surfaces. For example, a spray bottle will be better for someone with only quartzite countertops. People with quartzite floors will be better off with large packs.
Exterior or Interior Applications
Most sealants are rated both for indoor and outdoor applications. However, it is better to check before buying because indoor and outdoor surfaces are exposed to different conditions.
Most sealants last up to 5 years for internal and 3 years for external surfaces. Some high-end sealants last 15-25 years, depending on your use. You must select the right sealant according to your usage pattern, budget, and ease of application.
6 Best Quartzite Sealers
1. TriNova Natural Stone Protector
TriNova’s natural stone protector is an easy way to seal quartzite countertops, vanities, and floors. The polymer-based sealant protects surfaces from water, food, and other spills. It also stops discoloration, scratching, and etching on the surface.
It also restores the shine and gloss of old countertops, making them look new. TriNova comes in a spray bottle and is recommended for quick application. All you have to do is spray on the surface and buff with a clean, dry microfiber cloth, then wipe dry after 1-2 minutes and let it cure for 1-2 hours.
People who tested this sealant are impressed with its performance. Many people tested it on etched spots and scratches. It eliminates all the scratches after 2-3 coatings, with visible improvement after each application. Some homeowners suggest letting it cure overnight for best results.
- No residue
- Less curing time
- It may not work on white quartzite; test on an inconspicuous area before applying
2. Stone Tech Bullet Proof Sealer for Natural Stones
Stone Tech’s natural stone sealer is a quartzite specialist for interior and exterior applications. It protects up to 5 years for interior surfaces and up to 3 years for exterior surfaces. Although the manufacturer recommends annual resealing, user feedback reveals that one application lasts up to 2 years.
Overall, it is an excellent sealant for quartzite and other natural stone surfaces. You’ll want the new grout surfaces to be at least 72 hours old before you can apply Stone Tech. The sealant impregnates the surface and protects against spills such as water, food, and oil.
Users mention that the sealant is runny and moves pretty quickly; mask off surfaces that aren’t made of natural stone. Most users find it a bit difficult to seal large areas. People who used it to seal quartzite are happy with its performance. They say it is streak-free, removes stains, and passes the water test with flying colors.
- Perfect sealer for all surfaces
- Recommended by stone fabricators
- It may leave a white residue on some surfaces
3. Miracle Sealants 511QT6 Impregnator Sealer
Miracle 511 is arguably the most powerful quartzite sealant. The impregnator sealer is easy to work with and protects surfaces from oil & water spills, dust, debris, and grime. The sealant penetrates the stone’s surface and becomes a part of it. It also brings out the original shine and gloss of old surfaces.
The formula is for interior and exterior use. It protects against weathering events such as rain, snow, and harsh sunlight. The sealant is easy to use, but the manufacturer recommends letting it cure for 72 hours for the best results.
Most people who used 511 to seal quartzite are satisfied with its performance. People say it works well on dark-colored surfaces and never leaves streaks or rings. Please note that a topical sealant will not work over an impregnator sealant.
- Long-lasting protection for up to 5 years
- Powerful protection against oil stains
- It may not give the desired results if you don’t know how to apply it
- Contains VOCs, open windows and doors before application
4. Dry-Treat Stain-Proof Premium Impregnating Sealer
Dry-Treat’s impregnating sealer is formulated to provide long-term protection against water and oil-based stains. The sealant penetrates the surfaces but maintains breathability, helping avoid moisture buildup inside the stone.
The manufacturer gives 25 years performance warranty if an accredited applicator performs the sealing and the surface is regularly maintained as per the directions given in the user manual. The reason behind a long warranty is that sealant not only penetrates the surfaces; it molecularly binds to them.
It is more costly than most sealants because it is silicone based. Such sealers are commonly used in industrial applications where the goal is long-lasting results. The common applications include bridges and huge architectural structures.
The sealant is suitable for all natural stone surfaces. Users mention that it protects the surfaces and repairs the previous scratches and etches on quartzite. It works great for leathered and honed finished quartzite surfaces and hard quartzite types like the Taj Mahal and Perla Venta.
- Long-lasting protection
- No smell
- Performance warranty up to 25 years
- Easy application
- Excessively priced
5. StonePro – Ultimate Pro Sealer
It is another excellent sealant with 25 years performance warranty. It is not costly like Dry-Treat sealant (reviewed above), but it doesn’t have molecular binding technology. The sealant penetrates the surface but doesn’t become a part of the surface.
Other than its impeccable protection against water and oil stains, the highlighting feature is its VOC compliance. The sealant is the winner of the best of sustainability award.
The sealer is UV stable, making it a good fit for outdoor applications. Moreover, it doesn’t change the color or appearance of quartzite but brings shine and gloss to make it look new.
People who used it to seal quartzite have mixed reviews about it. Some say it didn’t make any difference after application, whereas others say it worked great on new surfaces. A few also mentioned that it left streaks and white marks.
- Easy application
- Brings back shine to old surfaces
- May leave streaks; test before application
- Requires at least 3 days for proper curing
6. Stone Care International Natural Stone Sealer
It is best for homes with quartzite countertops, kitchen islands, and bathroom vanities. The cleaner is easy to apply and protects against water and oil stains.
It is ammonia and phosphate-free, making it safe for surfaces that come into contact with food.
Please note that the manufacturer recommends using the sealer at least every 6 months for continued protection. If you stick with this sealant in the long run, this may transfer to higher maintenance costs.
People who used the sealer are happy with its result. They mention that it works great on quartzite, granite, marble, and natural stone surfaces.
- Quick application
- Strong smell
- Requires frequent coatings
What are the Downsides of not Sealing Quartzite Surfaces?
Quartzite and other natural stone surfaces are porous materials. The spills can seep down and damage the stone. These surfaces are also reactive to acidic liquids like vinegar, lemon juice, and wine. Unprotected surfaces can etch, discolor and scratch quickly compared to sealed surfaces.
How to seal Quartzite?
- Ask your stone fabricator for the right type of sealant as per the type and color of quartzite installed at your home.
- Remove all the things from the countertop and clean it thoroughly with a commercial or DIY cleaner.
- Apply the sealant as per the instructions on the sealing and let it cure as per the instructions.
- Don’t forget to open doors and windows for ventilation.
- Some sealants may require a second coating.
- Don’t use the surface for at least 24-48 hours after applying the sealant.
How to maintain Quartzite surfaces in the long run?
- Wipe spills and stains as soon as you notice them.
- Clean quartzite surfaces weekly with a commercial cleaner or a solution of mild detergent and warm water.
- Polish high-traffic areas every 1-2 weeks and lesser-used surfaces 1-2 months.
- Seal quartzite surfaces annually or frequently if there is wear and tear.