Quartz countertops are an increasingly popular choice for kitchen and bathroom renovations due to their durability, aesthetics, and low maintenance requirements. However, there is some debate around whether quartz countertops need to be sealed to protect them and extend their lifespan. Here is an in-depth look at the pros and cons of sealing quartz countertops to help you decide if it is right for your home.
What is Quartz?
Quartz countertops, sometimes referred to as engineered stone, are made from ground natural quartz crystals combined with polymer resins and pigments. The resulting material is non-porous, making it resistant to stains, scratches, heat, and bacteria growth.
Some key advantages of quartz countertops:
- Durable and long-lasting
- Available in a wide range of colors and patterns
- Requires minimal maintenance
- Resists stains, scratches, heat, and bacteria
- Non-porous so liquids don’t penetrate the surface
- Mold and mildew resistant
The Sealing Debate: Should You Seal Quartz Countertops?
Unlike natural stone countertops like granite or marble, quartz does not need to be sealed. In fact, manufacturers explicitly advise against sealing quartz. Here’s why:
Quartz is Already Non-Porous
The resins used to make quartz make it non-porous, so it does not absorb liquids or allow stains to seep in. This means sealing is not required to prevent staining or damage. Sealing an already non-porous material is redundant.
Sealers Can Cause Build-Up and Damage
Sealers cannot penetrate quartz like they do natural stone. Instead, they cure on the surface, causing a plastic-like layer to form. This layer is visible and attracts more dirt and debris. It also makes the countertop appear darker and feel uneven.
Voids the Warranty
Sealing quartz goes against manufacturer guidelines. Any damage caused by sealing the countertops can void the warranty.
Ongoing Maintenance is Still Required
Sealing does not make quartz maintenance-free. Regular cleaning is still required to keep quartz hygienic and looking its best. Neglecting cleaning while relying on a sealer can allow dirt and grime to build up.
Are There any Benefits to Sealing Quartz?
The main claims made about sealing quartz are:
- Adds shine and enhances color
- Minimizes surface scratches
- Makes cleaning easier
However, there is debate around whether sealers genuinely provide these benefits on quartz surfaces. Some homeowners do report enhanced shine and easier cleaning after sealing. But you can also achieve these results by polishing and properly caring for your unsealed quartz countertops.
How to Clean and Care for Unsealed Quartz
Caring for quartz does not require heavy-duty cleaners or sealants. Following these simple steps will keep your quartz surfaces looking like new:
- For daily cleaning, use a soft cloth or sponge with warm water and mild soap. Avoid abrasive cleaners.
- Rinse away all soap residue and dry thoroughly after cleaning.
- For stubborn stains, use a non-abrasive cleaning pad with a small amount of glass cleaner or ammonia-free counter spray.
- Blot spills immediately to prevent staining. Acids like wine, juice or vinegar should be cleaned as soon as possible.
- Avoid exposing quartz to strong chemicals like paint removers, oven cleaners, etc.
- Use trivets and hot pads under hot pans and appliances to prevent thermal shock.
- Re-polish quartz every 6-12 months using a quartz polish to restore shine.
Can You Seal Quartz After it is Installed?
It is not recommended, but is possible to have quartz sealed after installation. Consider these factors if choosing to seal:
- Use a premium quality sealer made specifically for quartz. Do not use a generic stone sealer.
- Carefully follow application instructions to avoid uneven sealer layers.
- Re-seal every 1-2 years as needed to maintain protection.
- Prep counters thoroughly before re-sealing to avoid trapping impurities under the sealer.
Sealing installed quartz counters could impact the warranty, so check with the manufacturer.Thoroughly research sealers and apply with extreme care to avoid permanent damage.
Conclusion
Sealing is generally considered unnecessary for quartz countertops. Quartz already resists staining and etching without a sealer. Sealers can damage quartz and void warranties if applied incorrectly. Simple daily cleaning and maintenance is all that is required to keep quartz countertops looking pristine for years. Speak to your installer or manufacturer if considering sealing to avoid potential issues down the road. In most cases, enjoying quartz counters in their natural state is best. With proper care, they will retain their beauty and function for decades without additional protection.
Frequently Asked Questions About Sealing Quartz Countertops
Should I seal my quartz countertops?
No, sealing is not necessary for quartz countertops. The resins used to manufacture quartz make it non-porous and resistant to stains and damage without sealants. Sealing can actually damage quartz and void warranties.
What happens if I do seal my quartz countertops?
Sealers cannot penetrate quartz so they will cure on the surface, creating a plastic-like layer that attracts dirt and debris. This can make the counters appear darker, feel uneven, and require more frequent cleaning.
Can sealing quartz improve stain resistance?
No, quartz already resists stains due to its non-porous surface. Sealers only provide marginal additional protection but can cause build up and damage over time. Proper cleaning is more effective than sealing for stain removal.
Should I re-seal my quartz countertops over time?
No, there is no need to re-seal quartz counters. Re-application of sealers will create further build-up on the surface. Simple daily cleaning is all that is required.
What is the best way to care for my quartz countertops?
Use a soft cloth with warm water and mild soap for daily cleaning. For stubborn stains, use a non-abrasive pad and mild cleaner. Avoid harsh chemicals. Blot spills immediately and re-polish every 6-12 months. No other maintenance is required.