Skip to content

If you need to seal and protect your outdoor concrete against:

  • Ingress of water
  • Chloride
  • Salts
  • Mold and mildew
  • Freeze-thaw attack…

You should look at a penetrating sealer.

Something like our CoverSeal Pen50 has excellent water  and salt resistance. It repels water, and it has anti-microbial additive to prevent mold and mildew.  Pen50 has the advantage of not changing the appearance of the concrete or altering its slip-resistance. This product dries clear and can be used on floor and walls to prevent damage like concrete pitting and spalling due to freeze thaw and deicing salts. Use this protective sealant to minimize costly repairs by preventing the damage in the first place.

If, in addition to waterproofing, you need oil and stain resistance, then our CoverSeal Pen55 would be an excellent choice.  Pen 55 is not only highly water-repellent it is also highly resistant to stains and oil.  Pen55 is very effective sealant for a concrete deck or cement driveway.

We also make a Reactive Penetrating sealer called CoverSeal DS160.  Reactive sealers penetrate deeper into the surface, react with the concrete and block efflorescence, rising moisture, and mineral deposits.  Use CoverSeal DS160 to prevent or hold back efflorescence (white powdery deposits) on your concrete , stone, terrazzo, brick or block  floor or wall surfaces.

Penetrating Sealers

Showing all 4 results

penetrating sealers for exterior concrete


Penetrating Sealers for Exterior Concrete

Concrete is a widely used material in construction due to its durability and strength. However, it is not impervious to damage caused by water, salt, oil, food stains, moisture, and efflorescence. To protect exterior concrete surfaces from these elements, penetrating sealers play a crucial role. In this article, we will explore three high-quality penetrating sealers offered by CoverTec Products, a USA-based specialty chemical manufacturer known for its exceptional concrete protection solutions.

  1. CoverSeal Pen 50: Water and Salt Resistance

One of the primary concerns for exterior concrete surfaces is water infiltration, which can lead to cracks, spalling, and other forms of deterioration. Additionally, in areas exposed to deicing salts, the concrete is at an even higher risk of damage. To combat these challenges, CoverTec offers CoverSeal Pen 50, a superior water and salt-resistant penetrating sealer.

CoverSeal Pen 50 utilizes advanced silane-siloxane technology to create a hydrophobic barrier within the concrete. This barrier repels water and prevents it from penetrating the surface, safeguarding the concrete against moisture-related issues. Furthermore, this sealer offers excellent resistance to chloride ions present in deicing salts, reducing the risk of salt-induced corrosion.

To learn more about CoverSeal Pen 50 and its remarkable properties, visit here.

  1. CoverSeal Pen 55: Oil and Food Stain Resistance

In areas where concrete surfaces are exposed to oil spills and food stains, protection is vital to maintain their appearance and integrity. CoverSeal Pen 55, another outstanding product from CoverTec, is specifically designed to address these concerns by providing exceptional oil and food stain resistance.

CoverSeal Pen 55 forms a deep-penetrating barrier that shields the concrete against oil and food stains, preventing them from penetrating the surface and causing unsightly discoloration. With this sealer applied, cleaning oil spills or removing food stains becomes significantly easier, ensuring that your concrete surfaces remain in pristine condition.

For more information on the remarkable oil and food stain resistance offered by CoverSeal Pen 55, click here.

  1. CoverSeal DS160: Deep Sealing for Moisture and Efflorescence Protection

When it comes to concrete protection, it is essential to address moisture-related issues and efflorescence, a phenomenon where white, powdery deposits form on the surface. CoverTec's CoverSeal DS160 is an exceptional solution for deep sealing concrete, providing robust protection against moisture drive and efflorescence.

CoverSeal DS160 deeply penetrates the concrete, creating a hydrophobic and vapor-permeable barrier. This barrier effectively repels moisture from infiltrating the concrete while allowing water vapor to escape, preventing issues like moisture-related damage, mold, and efflorescence. By safeguarding the concrete from within, CoverSeal DS160 ensures long-term durability and aesthetic appeal.

To discover more about the deep sealing capabilities of CoverSeal DS160 and its protection against moisture drive and efflorescence, visit here.

Frequently Asked Questions (FAQ)

  1. Are these penetrating sealers suitable for both residential and commercial applications?

Absolutely! CoverTec's penetrating sealers are designed for various applications, including residential and commercial settings. Whether you need to protect your home's concrete driveway or an expansive commercial concrete floor, these sealers offer reliable and long-lasting protection.

  1. Can these sealers be applied to both new and existing concrete surfaces?

Yes, CoverSeal Pen 50, CoverSeal Pen 55, and CoverSeal DS160 can be applied to both new and existing concrete surfaces. They are versatile products that can effectively protect concrete structures regardless of their age.

  1. How long does the protection provided by these sealers last?

The longevity of the protection depends on several factors, such as the application method, environmental conditions, and the type of concrete surface. However, CoverTec's penetrating sealers are formulated to provide long-lasting protection. In general, you can expect the sealers to maintain their effectiveness for several years before reapplication is required.

  1. Can I apply these sealers myself, or should I hire a professional?

While it is possible to apply these sealers yourself, hiring a professional is recommended for optimal results. Professionals have the necessary expertise and equipment to ensure proper application, maximizing the effectiveness and longevity of the sealers.


When it comes to protecting exterior concrete surfaces from water, salt, oil, food stains, moisture, and efflorescence, CoverTec Products offers top-of-the-line solutions. CoverSeal Pen 50, CoverSeal Pen 55, and CoverSeal DS160 provide exceptional protection against these elements, ensuring the longevity, durability, and aesthetics of your concrete structures. To learn more about these superior penetrating sealers and other concrete protection products offered by CoverTec, visit their official website at

Remember, investing in quality concrete protection today can save you significant time, effort, and money in the future, while also preserving the beauty and functionality of your exterior concrete surfaces.


Back To Top