Are Quartz Countertops Porous? Unveiling the Facts

This article will cover are Quartz countertops porous? While buying a new countertop material for our kitchen counter, we hear the term porosity. We chose a countertop material based on several parameters. You can compare the materials’ thickness, durability, and chemical composition.    

quartz countertops

But you can also compare all materials based on porosity. You must have heard that quartz stone has outstanding porosity performance. So, are quartz countertops porous?      

What do you understand when you hear porosity? Let us tell you how you can determine the porosity of a material.

Buy: Weiman Quartz Countertop Cleaner and Polish

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What Is Porosity?

The porosity of a material is an essential factor in measuring the durability of the countertop. Naturally occurring rocks are the source of many materials for countertops. These stones have some holes in them. Therefore, porosity is proportional to the number of holes in a stone.

A porous stone has minute holes in it. These holes act like passages to allow air and water accumulation. So, a stone has high porosity if it has more holes.  


The porosity of a stone is an essential factor you should check. The longevity of your countertop depends upon the porosity of the material. 

If your countertop material is more porous, this indicates that your countertop would be less durable. Some people use sealants as a protective layer on the countertops. The sealant does give you protection and reduces porosity. 

Taking care of porosity as a factor is a thing to note. If your countertop material is more porous, it allows more accumulation of oil and dirt. Moisture and air can trap in these holes and decrease the life of the stone. Therefore, we need to check the porosity of the stone before buying it.    

You will find many countertop materials that have less porosity. Let’s see that are quartz countertops porous or not.  

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Quartz Countertops  

The engineered quartz countertop is produced by mixing natural quartz minerals with resin solutions. Natural Quartz is perishable and breaks off easily. Therefore, we mix resins and Quartz to increase the countertop’s strength. This combination makes up a beautiful quartz countertop that is durable and sturdy.  

So when we doubt quartz countertops porous, your answer is no! Engineered quartz countertops are non-porous and the most durable of all the materials available. 

Engineered quartz countertops are so non-porous that they can even resist acidic stains. It also prevents trapping humidity and air. There will be no accumulation of oil and dirt. 

quartz countertops

You can install quartz countertops in places of daily use, like kitchens, bedrooms, bathrooms, and vanity areas. It will be prone to excessive use. Therefore, an everyday stain is a common sight on quartz countertops. But your Quartz will still shine like new when you wash it regularly. 

Engineered quartz countertops have a striking resemblance to natural stones. If you spend your money on a quartz countertop, you can be assured that it will be a cost-effective option.       

Quartz countertop is the most convenient countertop material. Engineered quartz countertops are hassle-free. But as we use quartz countertops in those spaces at our home prone to stains, we need to know the correct method to clean them.  

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Are Quartz Countertops Porous V/S Granites

Quartz stones have several advantages over granite stones. Granites are made from naturally occurring igneous rocks, engineered with sealants to block the pores. Many people substitute Quartz for granite countertops.

Scrubbing debris can cause scratches on the granite countertops. But due to regular wear and tear, the sealants tend to break, which can lead to the accumulation of dirt and humidity that results in stains. Sometimes, these stains are left unattained and develop into debris.

All these things affect the durability of the granites. Therefore, compared to granite stones, Quartz is a better option for countertops. Quartz countertops are non-porous. At the same time, granites are made to withstand humidity by applying sealants 

quartz countertops porous vs granites

We think that quartz stones are a better option than granite. Although, granite countertops are less expensive as compared to quartz countertops. Therefore, you can buy granite countertops in place of quartz countertops. 

Quartz may be over-priced, but it becomes cost-effective compared to its durability. If you have a granite countertop at your home, you may have to redo the layering of sealant from time to time. That makes quartz stones more cost-effective than granite stones. 

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Are Quartz Countertops Porous V/S Limestone

Shifting our focus from igneous rock-based countertops to sedimentary rock-based countertops, we have limestone as a competitor. Limestone is a popular choice because it has high heat resistance. High melting and boiling points are the physical reasons that make limestone resistant to heat.

Limestone is also a countertop material because it has beautiful layered designs. But when we compare limestones with quartz stone, it has a high porosity value. Therefore, you can see oil and stain forming debris. You would be able to notice the debris in a month.

are quartz countertops porous vs limestone

Quartz is a better option for countertops than limestones. This is because of the reason that engineered quartz stones are non-porous. Also, you will need to redo sealant layering twice a year on limestone countertops. 

Limestones are so porous that you need a sealant for sure. Using it as a countertop material without any layering will accumulate stains in just a few months. You cannot install it in your vanity spaces directly.

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What are the negatives of quartz countertops?

Quartz countertops are expensive compared to other countertop materials. Because Quartz is completely non-porous, another con of Quartz is its low resistance to heat. This is because the common quartz countertops that use are engineered ones. It also requires more work to cut and shape quartz countertops. Therefore, they are often bought as readymade countertops.

Which countertop is most porous?

If you wonder that are quartz countertops porous, then your answer is no. Some examples of porous countertop materials are granite, marble, and limestone.

Quartz v/s Granite, which is more porous?

Engineered quartz countertops are non-porous, which makes them an ideal and cost-effective choice for materials for countertops. On the other hand, granites are porous because of their grainy texture. They are usually layered with sealants to make them non-porous and durable.

Do quartz countertops need to be sealed?

It would help if you did not seal quartz countertops. It's because of their non-porous characteristic. Therefore, many people buy quartz stones. You don't need sealants to layer it on an annual basis. The maintenance cost is low. So, no need to waste any money on sealing your quartz countertop.

See Also: Sealing Granite Countertops


While buying the best material for our countertops, several parameters come to our minds. Many interior designers and experts suggest quarts as the prime option. Apart from durability and designs, we also wonder whether quartz countertops are porous.

But now we know we answer that quartz countertops are non-porous and the most cost-effective material.

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