How to Seal Quartz Countertops

Sealing quartz countertops is an important part of maintaining their beauty and durability. Here is a comprehensive guide on how to properly seal quartz counters.

Why Seal Quartz Countertops?

Though quartz is an extremely strong and stain-resistant material, sealing is still recommended for a few key reasons:

Adds extra protection against stains from spills like wine, coffee, and juice. This minimizes staining and makes cleaning much easier.
Reduces the accumulation of dirt, grease, and residue on the surface over time. Sealing forms a protective barrier that repels contaminants.
Retains the polished, like-new shine and luster of the countertops. Sealing fills in microscopic pores and creates a smooth finish.
Prolongs the life of the countertops by preventing damage from moisture and everyday use. Sealing blocks liquids from penetrating the surface.

When to Seal Quartz

Most experts recommend sealing quartz about once a year to maintain protection. Some key times to consider sealing include:

If countertops are new, seal them after installation. This gives them an extra layer of defense right away.
Seal after deep cleaning or resurfacing. This replenishes the sealant removed during intensive cleaning.
If water or other liquids start to show ring marks and are not beading up, it’s time to reapply sealer.
Seal annually as preventive maintenance, even if countertops seem well-protected. Yearly sealing helps ensure ongoing barrier effectiveness.

How to Seal Quartz Countertops

Sealing quartz counters is a quick and simple process. Here are the step-by-step instructions:

Gather Supplies

Quartz sealer – Select a specialty stone sealer made for quartz. Look for water-based and non-toxic.
Microfiber cloths – Use soft cloths that won’t leave behind lint. Avoid paper towels.
Masking tape – To protect walls and surfaces from excess sealer.
Rubber gloves, drop cloth – For your safety and to contain mess.

Clean the Surface

Before sealing, the countertops must be thoroughly cleaned:

Remove all items from countertops. Clear space to work.
Clean away all debris, crumbs, and residue with a soft cloth.
Use a nonabrasive countertop cleaner and rinse well with clean water.
Let the surface air dry fully. Make sure no moisture remains.

Apply the Sealer

Follow product instructions carefully. General directions include:

Tape off any walls or surfaces not being sealed. This contains drips.
Shake sealer bottle vigorously before using. Distribute compounds evenly.
Liberally apply sealer directly on the surface using a clean, soft cloth.
Spread the sealer slowly and methodically to coat every inch of the surface.
Let sealer sit for 5-10 minutes. This allows it to penetrate and properly cure.
Thoroughly wipe away all excess sealer with a fresh dry cloth.
A second coat may be needed for full protection per label instructions.

Finish and Cure

Allow sealer to cure fully, about 24-48 hours. Avoid water or cleaning during this time.
Reapply to high use areas like sink and stove every 3-4 months for added protection.
Properly dispose of rags, as they can be flammable until cured and dried.

Tips for Sealing Quartz Countertops

Follow these tips for best results when sealing quartz:

Test sealer in an inconspicuous spot first to check for any discoloration or residue.
Only use sealers made specifically for quartz. Stone, marble, and granite sealers may damage the surface.
Reseal edges and seams first where moisture penetration happens most.
Seal sinks and cooktop areas more frequently than other spots for added protection.
Ventilate the area well and wear gloves to avoid inhaling fumes from solvent-based sealers.
Work in sections and gently rub sealer on rather than spraying for most even coverage.

Maintaining Quartz Countertops

In addition to annual sealing, employ these habits for lifelong quartz beauty:

Use cutting boards, trivets, and placemats to protect from scratches and impacts.
Clean up spills promptly to prevent possible staining. Avoid abrasive scrubbing.
Rinse with water and use a quartz-safe cleaner for daily cleaning.
For tough stains like rust or food, use a nonabrasive cleaner made to clean quartz.
Avoid using any cleaners containing acids, alkaline solutions, or scouring pads.

With proper care and sealing, quartz countertops will retain their like-new radiance and function for decades. Be sure to seal them at least annually for optimal durability. Follow the process step-by-step, allow time to cure completely, and reapply to high-wear areas as needed. With this simple maintenance, quartz can stay luminous through years of cooking, eating, and living.

Frequently Asked Questions About Sealing Quartz Countertops

Do quartz countertops need to be sealed?

Yes, it is highly recommended to seal quartz countertops annually to protect against stains, etching, and moisture damage. Though durable, sealing adds an extra layer of protection.

Does quartz need to be sealed before use?

Yes, it is ideal to seal quartz shortly after installation. This gives an added barrier right away before the countertops get used.

What is the best sealer for quartz?

Look for a sealer specifically formulated for quartz. Water-based sealers are often safest. Avoid using a sealant made for other natural stones.

How long does a quartz sealer last?

A quality quartz sealer will typically last about a year with proper application. High traffic areas may need more frequent reapplication every 3-4 months.

How can you tell if quartz needs to be resealed?

Signs quartz needs resealing include water not beading up, visible stains, increased surface etching, and overall dull or faded appearance.

Is there a difference between sealing engineered vs. natural quartz?

No, the sealing process is the same. All quartz countertops, whether engineered or 100% natural stone, need annual sealing.

What happens if you don’t seal quartz?

Unsealed quartz is more prone to etching, scratches, stains, and water damage over time. Sealing is the best way to make quartz most stain and damage resistant.

Can you over-seal quartz?

Yes, it is possible to over-seal quartz which can make the surface appear hazy. Always follow product instructions and buff off any excess sealer completely.

Conclusion

Annual sealing is vital for increasing the longevity and aesthetic appeal of quartz countertops. By properly sealing and caring for quartz, you can enjoy stain-free, brilliant countertops for decades to come. Be sure to thoroughly clean, evenly apply a quartz-safe sealer, allow time to cure, and buff away any residue for best results. With this simple routine, quartz countertops will shine as beautifully as the day they were installed.