What is it?

Concrete Sealer / What is it?

Concrete sealers are designed to protect concrete from damage. They can be classified into two major categories: topical and penetrating. Topical sealers form a protective layer on the surface while penetrating sealers go beyond the surface and form a chemical barrier within the concrete.

Concrete Articles

Our Latest Concrete Articles

July 16, 2019  

November 24, 2020  

January 2, 2019  

What does it do?

Why Should I Use Concrete Sealer?

Applicable in both interior and exterior surfaces, concrete sealers can do more than just protecting your concrete.

It keeps the aesthetic look of your concrete

When you apply topical sealers, you help prevent concrete discoloration — a naturally occurring process that degrades the look of your concrete surface over time. Additionally, they can give that “wet look” finish if you want to have that appeal for your space. Nowadays, manufacturers also offer colored sealants if you prefer to bring more life to your concrete surfaces. 

If you want to maintain the natural look of your concrete, penetrating sealers are your friend. As mentioned,  these sealers form a protective layer beyond the surface. They don’t change how your concrete surface looks.

It prevents mold growth

Concrete’s porous nature makes it easy to absorb water. And when there’s water that isn't dried out, there’s an excessive level of moisture, which in turn can cause mold formation. You might not want mold to grow in any part of your home — especially in concrete areas. These microorganisms are the culprit behind those unsightly green discolorations. Sealing your concrete is an effective way of inhibiting mold growth. 

It prolongs the life of your concrete

Did you know that a concrete surface can last for up to three decades? When you apply a concrete sealer, you won’t only essentially extend the life of your concrete — you also help keep the integrity of its look. What’s the use of a durable concrete surface if it has damages like stains, cracks, and discolorations?

It boosts the overall value of your property

With well-preserved concrete surfaces like patios, driveways, and basement floors, it’s only justifiable for your home to have a great market value. If you’re planning to sell it in the future, concrete sealers can be seen as a great investment.

What are they made of?

What Are The Types Of Concrete Sealer?

Concrete sealers are available in different chemical types. And each has its own advantages.


Acrylics is one of your more cost-effective concrete sealer options. Easy to apply and quick to dry, they work well in both interior and exterior settings. However, clients more commonly use them in pool decks and driveways because of their non-yellowing nature and ability to protect surfaces from harmful UV rays. 

Acrylic sealers can be solvent-based and water-based. The former gives that glossy appeal, while the latter produces a not-so-shiny protective layer.


With its long-lasting finish, you can commonly find epoxies in areas with high foot traffic (e.g. warehouse, shop, and restaurant floors). You can also typically see them being used in concrete countertops —this is primarily because of their high resistance to abrasion as well as their water-repelling capabilities. 

Though they usually are transparent, you can avail them in different colors — and in different gloss levels. 

Polyurethane and Urethanes

These concrete sealers are highly resistant to oil, harsh chemicals and other liquids, and even gases. This is why they’re a popular option among industries that heavily uses the said substances. 

These are also recognized for their incredibly durable finish — they can be twice as thick as acrylic concrete sealers.

Silicates, Silicates, and Siloxanes

This family of concrete sealers gives surfaces that clear, natural look. Plus, they also serve as effective protection against liquid absorption and moisture. 

Though they are an economical choice, experts recommend observing the utmost safety when applying these sealers — mainly because of their high content of volatile organic compounds (VOCs). These compounds can irritate the eyes and nose when not properly handled. 

If you choose this sealer, opt for a water-based one. This has a relatively lower VOC content and is more convenient to apply.

What's next?

Now that you know what concrete sealer is and what type you need for the job your working on.  It's time to choose a product.