Quartz countertops are popular options for kitchen and bathroom remodels because of their durability, low maintenance, and stylish appearance. Unlike natural stone countertops like granite or marble, quartz is an engineered stone made from crushed quartz combined with resins and pigments. This makes quartz naturally stain and scratch resistant. However, some homeowners still prefer to use a sealer on quartz for added protection.
What is a Sealer?
A sealer is a liquid product that is applied as a thin protective coating on countertops. Sealers work by getting absorbed into the pores of natural stone like granite to create a barrier that prevents stains from penetrating the surface.
Sealers come in different formulations:
- Impregnating sealers – Absorb into the stone and don’t leave a coating on top. Provide stain protection below the surface.
- Topical sealers – Form a protective layer on top of the stone. Help resist stains and etching.
- Enhancing sealers – Contain dyes or resins to enhance color and gloss. Also provide protection.
Do You Need a Sealer for Quartz?
Since quartz is non-porous, sealers don’t penetrate into the material. Manufacturers say that sealers are not necessary for quartz because it is stain resistant without any additional treatment. The resins mixed into quartz fill in the pores, so liquids don’t soak into the surface.
However, somequartz owners still choose to use a topical sealer as an extra precaution:
- For water resistance – Though quartz repels water, sealers can provide an additional barrier.
- To increase stain protection – Sealers form a protective coat to make the surface more impervious.
- To simplify cleaning – The sealer fills in micro-scratches and creates a smoother surface to prevent dirt buildup.
- For gloss enhancement – Clear sealers can slightly improve the shine of quartz.
So while sealers aren’t required for quartz, some homeowners prefer to use them for extra protection and easier cleaning.
Best Sealers for Quartz Countertops
If you want to use a sealer on your quartz countertops, look for a product specifically designed for quartz or engineered stone. Avoid impregnating sealers which are meant for porous natural stone.
Here are some top options:
1. Tenax Hydrex
- Silicone-basedformula provides water repellency.
- Prevents moisture penetration and staining.
- Designed for quartz, granite, marble, and porcelain.
- Adds gloss and enhances color.
- Lasts 1-3 years.
2. Miracle Sealants 511 Impregnator
- Provides excellent stain protection.
- Repels water, oil, and grease.
- Allows surface to breathe.
- Can also be used on natural stone, tile, and grout.
- Lasts up to 5 years.
3. Black Diamond Nex-Gen Natural Stone Sealer
- Water-based acrylic formula.
- Fills in micro-pores and scratches.
- Prevents staining and etching.
- Low odor and non-toxic.
- Lasts 1-3 years.
4. Granite Gold Sealer
- Designed for quartz and granite countertops.
- Silane/siloxane polymer formula.
- Resists water, oil, and acids.
- UV-resistant against yellowing.
- Lasts up to 1 year.
5. Rock Doctor Granite & Quartz Sealer
- Provides long-lasting protection.
- Creates a glossy, stain-proof barrier.
- Can also be used on natural stone, grout, and tiles.
- Goes on easily without leaving residue.
- Lasts 1-3 years.
How to Seal Quartz Countertops
Sealing quartz countertops is a relatively easy DIY project. Here are some step-by-step instructions:
Step 1: Clean the Countertops
Thoroughly clean your quartz countertops with a stone-safe cleaner to remove any dirt, dust, oil, or residue. Rinse well and let the surface dry completely before applying the sealer.
Step 2: Mask Off Area
Use painter’s tape to mask off any areas you don’t want to get sealer on, like the walls, cabinets, or backsplash.
Step 3: Apply Sealer
Following the product directions, apply a thin, even layer of sealer directly onto the countertop using a clean cloth or foam applicator. Carefully spread the sealer around to cover the entire surface.
Step 4: Allow Sealer to Penetrate
Let the sealer sit on the quartz for 5-10 minutes so it can fully penetrate. Don’t let it pool or dry completely.
Step 5: Wipe Off Excess
Thoroughly wipe off any excess sealer with clean, dry microfiber cloths before it dries.
Step 6: Apply a Second Coat (Optional)
For added protection, apply a second thin layer of sealer and wipe off any excess after 5 minutes.
Step 7: Remove Tape and Cure
Carefully remove all painter’s tape immediately after sealing. Allow the sealer to cure for 24-72 hours before using the countertops.
Step 8: Final Cleaning
Give the countertops a final wipe down with a damp microfiber cloth to remove any leftover residue. The quartz can now be used and enjoyed!
Reapply the sealer every 1-3 years as needed to renew the protective barrier.
FAQs about Sealing Quartz Countertops
Should I seal quartz countertops before or after installation?
It’s best to seal quartz after installation. Sealing an intact countertop helps ensure you don’t miss any spots. Sealing before could also interfere with any adhesives used during installation.
How long does it take for sealer to cure on quartz?
Allow 24-72 hours for the sealer to fully cure before using the countertops. Avoid any cleaners, liquids, or heavy objects during this time.
Can I use an impregnating sealer on quartz?
No, impregnating sealers are designed to penetrate porous natural stone. They won’t work on non-porous quartz. Use a topical sealer instead.
Do I need to seal the grout between quartz countertops?
Yes, it’s a good idea to use a grout sealer on the grout lines near quartz countertops to prevent stains. Use a different sealer made for grout.
Should I reseal my quartz countertops?
Plan to reapply quartz sealer every 1-3 years depending on use. Signs you may need resealing include water pooling on the surface or an increase in stains and etching.
Can I use wax or polish on quartz instead of sealer?
Wax or polish isn’t a good substitute for sealer on quartz countertops. Sealers provide better stain protection. Save waxes and polishes for ongoing maintenance.
Is there any downside to sealing quartz?
The main downsides are the cost of the sealer products and the hassle of reapplying every few years. Optimal results also depend on proper application.
What’s the best quartz countertop sealer brand?
Some top brands for quartz sealers include Tenax, Miracle Sealants, Black Diamond, Granite Gold, and Rock Doctor. Compare products to pick the best sealer for your needs.
Caring for Quartz Countertops
In addition to sealing, follow these tips to keep your quartz countertops looking like new:
- Clean spills quickly to prevent staining. Use a pH-neutral quartz cleaner.
- Avoid abrasive scrubbers and harsh chemicals that could etch the surface.
- Use cutting boards and trivets to protect from knives and hot pans.
- Clean with a soft sponge or microfiber cloth using minimal pressure.
- Reseal every 1-3 years with a compatible quartz sealer.
- Apply mineral oil to dull spots to restore shine.
With proper care and regular sealing, quartz countertops will stay beautiful and functional for years. Be sure to choose the right sealer and application method to enhance the longevity and appearance of your quartz.
Conclusion
Although quartz countertops don’t require sealing, many homeowners choose to apply a sealer every few years for extra protection. Topical sealers designed specifically for engineered stone help repel moisture, prevent staining, add gloss, and make cleaning easier. With a quality sealer made for quartz and proper application, you can keep your quartz counters in pristine shape. Be sure to keep up with regular maintenance like prompt cleaning and resealing as needed. With the right sealer and care, quartz countertops will maintain their good looks and perform beautifully for decades.