Quartz countertops are an increasingly popular choice for kitchens and bathrooms due to their durability, aesthetics, and ease of maintenance. Though quartz is highly resistant to scratches, stains, and heat, some homeowners wonder if they should take the additional step of sealing their quartz counters. Here is a detailed look at the pros and cons of sealing quartz countertops.

What is Quartz?

Quartz countertops, sometimes called engineered stone, are made from ground natural quartz crystals combined with resins and pigments. The quartz makes up about 90% of the material while the resins act as a binder. The end result is a hard, non-porous surface that resists scratches, stains, and heat.

Unlike natural stone countertops such as granite or marble, quartz does not need to be sealed regularly since it is non-porous. Liquids and oils do not penetrate the surface, making quartz an extremely low maintenance option.

The Benefits of Sealing Quartz

Though quartz manufacturers state sealing is not necessary, some homeowners choose to treat their quartz counters with sealers. Here are some possible benefits:

Enhanced stain protection – Though quartz itself is stain-resistant, sealing provides an extra layer of protection, especially for oil-based stains.
Easier cleaning – Sealing quartz can make regular cleaning easier by preventing buildup and residue. Wipes and spills won’t soak in as much.
Keeps counters looking new – Sealing may help quartz maintain its like-new appearance for longer.
Peace of mind – Some homeowners seal quartz for extra assurance and confidence in the durability of their investment.

The Drawbacks of Sealing Quartz

On the other hand, there are some downsides associated with sealing quartz countertops:

Added cost – Sealers must be reapplied over time. This requires purchasing the product and taking the time to apply it.
Sealer wear – Like any topical treatment, sealers can eventually wear away or become damaged. This leaves unsealed spots vulnerable.
Color/finish change – Some quartz sealers slightly alter the appearance, leaving a glossy or cloudy look.
False sense of security – Sealing may lead some homeowners to feel quartz requires no further care or maintenance. In reality, quartz still needs proper cleaning.
Voiding warranties – Many quartz manufacturers state that sealing the counters voids any warranties.

Factors to Consider About Sealing

There are a few factors specific to your quartz countertops that may impact the sealing decision:

Color and pattern – Solid lighter colors show more signs of wear than busier dark patterns. Sealing may be more beneficial for light-colored quartz.
Use and traffic – Quartz used in heavy use areas like kitchens may benefit from sealing more than low traffic zones.
Quality of installation – Proper installation reduces cracks and gaps that could allow substances in even without sealing.
Manufacturers guidelines – Check your specific brand’s advice, as some makers strongly advise against sealing.

Best Practices for Sealing Quartz

If you opt to seal your quartz counters, follow these best practices:

Consult your manufacturer first and choose a compatible sealer made for quartz.
Clean counters thoroughly before the initial sealing to remove any residue.
Apply the sealer evenly according to directions, allowing proper drying time.
Seal the entire surface, not just select areas. Reseal as directed over time.
Avoid wax-based and acidic cleaners which can break down sealer.
Reseal if water no longer beads on the surface or if stains become more pronounced.

Caring for Quartz Counters

Whether sealed or unsealed, certain care is recommended to keep quartz counters looking like new:

Wipe up spills immediately to prevent staining.
Use mild soap and water or stone-safe cleaners, not harsh chemicals.
Rinse thoroughly after cleaning and avoid leaving wet messes sitting on the surface.
Use trivets and hot pads under hot pots and pans to prevent thermal shock.
Don’t cut directly on the counter without a cutting board.

Should You Seal Your Quartz Countertops?

While sealing quartz counters may provide extra protection, most experts agree it is an optional step since quality quartz is non-porous. For homeowners highly concerned about stains and wear, sealing brings peace of mind. However, the drawbacks like cost and sealer maintenance may outweigh the benefits for most quartz owners. Thorough cleaning and avoiding damage will keep quartz counters pristine with or without sealing. Consult your specific brand’s recommendations before deciding.

FAQ About Sealing Quartz Countertops

Here are answers to some frequently asked questions about sealing quartz counters:

Is sealing quartz necessary?

Sealing quartz is optional since quartz is non-porous. Unsealed quartz resists stains and damage well on its own. Sealers provide an added layer of protection but are not required.

What is the best sealer for quartz?

Look for sealers specifically formulated for quartz and engineered stone. Water-based silicone sealers provide the best combination of protection without altering the look.

How often should you seal quartz countertops?

Quartz manufacturers typically recommend sealing every 1-2 years if you choose to seal. Check for signs of wear like reduced beading of water droplets to determine when it’s time to reseal.

Can sealing quartz change the look?

Some quartz sealers, especially solvent-based options, may slightly alter the glossiness or tone. Test sealers in an inconspicuous spot first. Opt for water-based sealers less likely to change appearance.

Does sealing quartz void the warranty?

Many major quartz brands state that sealing the counters will void any original warranties. Always check with your manufacturer before sealing.

Can you use wax on quartz?

No, avoid wax on quartz as it can damage the finish and seep into cracks. It also creates a film that needs constant stripping and reapplication. Use quartz-safe cleaners instead of wax.

Is sealing required for all colors of quartz?

Sealing provides more noticeable benefits on lighter quartz colors that show wear and stains more readily. Darker patterns conceal signs of aging with or without sealing.

How do you maintain sealed quartz?

Use only pH-neutral quartz cleaners without acids or abrasives. Avoid wax-based cleaners that degrade sealer. Reseal as often as directed by the product instructions.

Conclusion

Quartz countertops offer natural beauty, durability, and easy care whether sealed or unsealed. While sealing provides an added layer of protection, it is not essential for non-porous quartz. Following the manufacturer’s guidelines and properly caring for quartz can maintain its like-new condition for years. Consult your quartz fabricator to decide if sealing is right for your particular counters. With routine cleaning and avoidance of damage, quartz offers homeowners a lifetime of low maintenance use and enjoyment.

Should Quartz Countertops Be Sealed?