Do You Have to Seal Quartz Countertops Every Year?

Quartz countertops are an increasingly popular choice for kitchens and bathrooms due to their durability, aesthetics, and low maintenance. However, there is some debate around whether quartz countertops need to be sealed regularly to maintain their appearance and performance. Here is a detailed look at the facts around sealing quartz countertops annually.

What is Quartz?

Quartz countertops, sometimes referred to as engineered stone, are made from ground natural quartz crystals combined with resins and pigments. The quartz content typically ranges from 90-94%. The remaining 6-10% consists of polymers and dye.

Compared to natural stone counters like granite and marble, quartz is non-porous, making it very resistant to stains. The polymer resins create a tighter surface and fill the minuscule pores between quartz particles. This makes quartz less prone to harboring bacteria.

Do You Need to Seal Quartz Countertops?

Unlike granite or marble, quartz countertops do not require regular sealing. The resins used in the manufacture of quartz make it non-porous, so liquids and stains cannot easily penetrate the surface.

However, some homeowners choose to apply sealant to quartz for added protection and peace of mind. The main reasons are:

  • Enhance shine – Sealant can make quartz gleam and appear more polished.
  • Prevent surface stains – While quartz resists deep staining, sealant provides an added barrier against things like coffee, juice, or wine that may leave surface stains if left for prolonged time.
  • Ease cleaning – Sealed quartz repels spills better and can be easier to clean.

So in summary, sealing is not strictly required but can be beneficial for improving appearance and minimizing maintenance.

How Often Should You Seal Quartz Countertops?

For homeowners who choose to seal their quartz counters, most manufacturers recommend reapplying sealant every 1-2 years.

However, many factors affect sealant longevity:

  • Use and wear – Kitchens experience more frequent use and cleaning than bathrooms, so the sealant wears faster. High traffic kitchen counters may need sealing yearly.
  • Quality of sealant – Higher quality sealants designed specifically for quartz last 2-3 years. Generic stone sealants may require yearly application.
  • Proper application – The sealant must be applied evenly across the entire surface following label directions to get maximum durability.
  • Household chemicals – Bleach, window cleaners, and other harsh chemicals wear down sealant more quickly.

Monitoring your quartz counters is the best way to determine when they need resealing. If liquids start to bead or stain rather than wiping clean easily, it’s time to reapply.

What’s the Best Quartz Countertop Sealant?

Look for a sealant designed specifically for quartz rather than a generic stone sealant. Theformula should be non-toxic, NSFC-certified, and safe for food contact surfaces.

Some top options include:

  • Tenax Hydrex: Water-based formula provides advanced stain protection for 2-3 years.
  • Miracle Sealants 511 Impregnator: Provides resistance to moisture, oil, and stains.
  • Granite Gold Sealer: Designed for quartz and provides long-lasting protection with UV blockers.
  • DuPont BulletProof: Specialized for engineered stone with 10-year warranty against staining.

Be sure to carefully follow manufacturer’s directions for application and curing time. Typically 2-3 thin coats are best to ensure even coverage and maximum durability.

How to Seal Quartz Countertops

Sealing quartz counters is a relatively simple DIY project if done properly. Here are some step-by-step instructions:

  1. Clean counters thoroughly with a stone-safe cleaner and rinse well. Let dry completely.
  2. Mask off any areas you don’t want coated in sealer such as walls or cabinetry with painter’s tape.
  3. Read and follow sealant label directions.Apply a thin, even coat across the entire surface using a lint-free cloth or foam applicator.
  4. Allow sealer to soak in for 15-20 minutes. Wipe away any excess.
  5. Apply second coat and allow to cure for time specified on label, usually 30-60 minutes.
  6. A third coat can be applied for better protection, following same process.
  7. Remove painter’s tape and wipe away any residue. Do not use counters for at least 24 hours.
  8. Ventilate area well during application and curing. Follow all safety precautions.

Proper sealing application is crucial for maximum performance and longevity of protection. Hiring a professional can often provide the best results.

Maintaining Sealed Quartz Counters

To keep sealed quartz counters looking their best:

  • Use a pH-neutral stone cleaner for routine cleaning. Avoid abrasive cleansers.
  • Blot spills quickly to prevent staining. Acids like lemon juice or vinegar should not be left on.
  • Reseal counters at least every 1-2 years depending on condition and use.
  • Avoid using harsh chemicals like bleach, paint removers, etc. which can degrade sealant.
  • Use trivets and hot pads under hot pans to prevent burning sealant.

With proper care and occasional resealing, quartz counters will maintain their durability, shine, and resistance to damage. Sealing provides an added layer of protection.

Frequently Asked Questions

Should quartz counters be sealed when new?

It is a good idea but not absolutely necessary. New quartz comes sealed from the factory, but an additional coat of quality sealant ensures maximum stain protection.

Does sealing quartz change the appearance?

It can enhance the glossiness slightly and make darker colors appear richer. But in general, it should not significantly alter the look.

Can I use a granite sealer on quartz?

Specialized quartz sealers are better. But if only a granite sealer is available, it can be used as long as it is non-toxic and safe for food surfaces after full curing.

How do I know if my quartz needs to be resealed?

If spills start to stain or bead up rather than wiping away cleanly, that is the main sign that resealing is needed to refresh the protective barrier.

Is there a sealer that lasts 5-10 years on quartz?

No, 1-3 years is the maximum durability from any sealer under normal use conditions. Longer than 3 years is not recommended for adequate protection.


While sealing quartz counters every year is not compulsory, it can be beneficial for adding extra stain, moisture, and heat protection. For those who choose to seal quartz, an application every 1-2 years with a high-quality quartz-specific sealant is ideal to maintain optimal performance. With proper care and maintenance, sealed quartz countertops will retain their durable, attractive appearance for many years. Regular sealing provides an extra level of protection for this popular low-maintenance surface.