Do Quartz Countertops Need to Be Sealed?

Quartz countertops have gained popularity in recent years due to their durability, low maintenance, and aesthetic appeal. A common question that arises when considering quartz countertops is whether or not they need to be sealed. This article will provide a comprehensive guide on quartz countertops, the sealing process, and how to properly maintain them.

What is Quartz?

Composition of Quartz Countertops

Quartz countertops are engineered from a combination of materials:

  1. Natural quartz: Approximately 90-94% of the material is made from ground-up natural quartz, a mineral known for its hardness and durability.
  2. Resin binder: The remaining 6-10% of the countertop consists of a resin binder, which holds the quartz particles together.
  3. Pigments and other additives: To achieve various colors and patterns, pigments and other additives are mixed into the composition.

Benefits of Quartz Countertops

Quartz countertops offer several advantages over other countertop materials:

  • Durability: Quartz is one of the hardest minerals on Earth, making it an incredibly durable countertop material.
  • Stain resistance: The non-porous surface of quartz countertops resists staining from common household spills.
  • Low maintenance: Quartz countertops require minimal maintenance compared to natural stone countertops.
  • Variety of design options: Quartz countertops come in a wide range of colors and patterns, making it easy to find the perfect match for any kitchen or bathroom design.

Sealing Natural Stone Countertops

Purpose of Sealing

Sealing natural stone countertops serves two primary purposes:

  1. Protection against stains: The sealant creates a protective barrier on the surface of the stone, preventing liquids from penetrating and causing stains.
  2. Prolonged lifespan: Regularly sealing your countertops can help maintain their appearance and extend their lifespan.

Types of Stone That Require Sealing

The following natural stone countertop materials typically require sealing:

  1. Granite
  2. Marble
  3. Limestone
  4. Travertine

How Often to Reseal Natural Stone Countertops

The frequency at which you should reseal your natural stone countertops depends on the type of stone, its porosity, and the amount of use it sees. Generally, resealing is recommended every 1-3 years for most natural stone surfaces.

Quartz and Sealing

Reasons Why Quartz Does Not Require Sealing

Quartz countertops do not require sealing for several reasons:

  1. Non-porous surface: Unlike natural stone, quartz has a non-porous surface that resists staining without the need for a sealant.
  2. Resin binder providing protection: The resin binder in quartz countertops creates a built-in protective barrier, reducing the need for additional sealants.
  3. Engineered nature of quartz: Quartz countertops are engineered to be low maintenance and highly durable, eliminating the need for regular sealing.

Comparison of Quartz to Natural Stone

When comparing quartz to natural stone countertops, there are key differences in porosity and stain resistance:

  • Porosity levels: Natural stone countertops are more porous than quartz, making them more susceptible to staining.
  • Stain resistance: Quartz countertops are inherently stain-resistant due to their non-porous surface and resin binder.

Quartz Countertop Maintenance

Daily Cleaning

To keep your quartz countertops looking their best, follow these daily cleaning tips:

  • Recommended cleaning agents: Use mild soap and water or a gentle surface cleaner specifically designed for quartz countertops.
  • Avoiding harsh chemicals: Do not use abrasive cleaners or chemicals that contain bleach or ammonia, as these can damage the surface of the quartz.

Addressing Spills and Stains

To prevent stains and maintain the appearance of your quartz countertops, follow these steps for addressing spills and stains:

  1. Immediate action: Clean up spills as soon as they occur to prevent liquids from drying on the surface and potentially causing stains.
  2. Removing stubborn stains: For stubborn stains, use a non-abrasive sponge or cloth and a mild cleaner designed for quartz surfaces. Gently scrub the area and rinse with water.

Preventing Damage

While quartz countertops are highly durable, it is essential to take precautions to prevent damage:

  1. Heat resistance: Although quartz is resistant to heat, prolonged exposure to high temperatures can cause damage. Use trivets or hot pads to protect the surface when placing hot pots or pans on the countertop.
  2. Scratches and chips: Quartz is resistant to scratches, but it is still a good idea to use cutting boards when preparing food to prevent any potential damage.

When to Consider Resealing Quartz

In most cases, quartz countertops do not require resealing. However, there are some situations where resealing might be necessary:

  1. Signs of wear and tear: If you notice visible signs of wear, such as scratches or a dull appearance, consult a professional to determine if resealing is necessary.
  2. Damage to the resin binder: If the resin binder is damaged, it might require resealing to restore the surface’s protective barrier.
  3. Consultation with a professional: If you are unsure whether your quartz countertop needs resealing, consult a professional for advice.


In conclusion, quartz countertops offer several benefits over natural stone countertops, including their low maintenance requirements and resistance to staining. While natural stone countertops typically require sealing to protect against stains and prolong their lifespan, quartz countertops do not need sealing due to their non-porous surface and built-in protection from the resin binder.

Proper maintenance of quartz countertops, such as daily cleaning, addressing spills and stains promptly, and preventing damage, can help ensure that your countertops remain in excellent condition for years to come. If you have concerns about the appearance or performance of your quartz countertops, consult a professional for advice on whether resealing might be necessary.


  • Nathan Collins

    Having spent years working in the landscaping industry, Nathan Collins has cultivated a wealth of knowledge about the natural world. He is committed to helping others appreciate the beauty in their backyards, whether it's through identifying rare rocks and minerals or crafting the perfect landscape.

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