Penetrating vs. Film-Forming Sealers: Choosing the Right Concrete Sealer
For professional applicators, selecting the correct sealer is about delivering a finished product that satisfies the customer and stands the test of time. The two primary categories professional applicators encounter are penetrating sealers and film-forming sealers. Understanding the technical differences between these two options is critical for ensuring longevity, durability, and the desired aesthetic for every project. At Deco Products, Inc., we provide the high-quality, American-made solutions you need to get the job done right.
Understanding the Difference Between Penetrating and Film-Forming Sealers
While both types of sealers aim to protect concrete and masonry, they do so through different mechanisms. Knowing the science behind the application will help you explain the benefits to your clients.
What is a Penetrating Sealer?
A penetrating sealer is designed to absorb deep into the pores of the concrete or masonry substrate. Instead of sitting on top, it chemically reacts within the capillaries of the material. This reaction creates a hydrophobic barrier that repels water and salts from within. Because it works below the surface, a penetrating sealer typically does not change the appearance or texture of the concrete. It leaves a natural, matte finish that allows the concrete to “breathe,” allowing moisture vapor to escape while preventing liquid water from entering.
What is a Film-Forming Sealer?
A film-forming sealer forms a protective layer on the substrate surface. This “film” acts as a barrier against water, stains, and abrasion. In the broader industry, these sealers are often used to enhance color or add sheen. However, high-gloss finishes can often look plastic or artificial.
At Deco Products, Inc., our formulations protect the surface while maintaining a natural, professional look, without the high-gloss shine that can become slippery or unsightly over time.
Ideal Applications for Each Sealer Type
Choosing the right sealer depends heavily on the surface material and how the area will be used.
- Driveways, Sidewalks, and Parking Decks: For high-traffic areas exposed to freeze-thaw cycles and de-icing salts, a penetrating sealer is often the superior choice. It provides deep protection without altering surface friction, meaning the surface will not become slippery when wet.
- Decorative Stamped Concrete: Film-forming sealers are frequently used here to protect the textured surface from wear and tear.
- Natural Stone and Brick: These porous materials benefit greatly from penetrating sealers, which preserve the natural look of the stone while preventing efflorescence and water damage.
Benefits and Limitations of Penetrating vs. Film-Forming Sealers
When consulting with property owners, it helps to weigh the pros and cons of each type.
Penetrating Sealers:
- Longevity: Since they are protected inside the concrete, they last much longer and do not peel, flake, or wear away like a topical coating.
- Maintenance: They require very little maintenance once applied.
- Aesthetics: Penetrating sealers provide an invisible shield, maintaining the original look of the substrate.
Film-Forming Sealers:
- Protection: Film-forming sealers offer a sacrificial layer that takes the brunt of physical wear and stains.
- Maintenance: Because the layer is on top, it will eventually wear down due to traffic and UV exposure, requiring re-application sooner than a penetrating sealer.
- Aesthetics: These are ideal when the goal is to create a barrier against surface stains, grease, or oil.
Choose the Right Deco Products Sealer for Your Project
At Deco Products, Inc., we have been manufacturing environmentally safe sealers since 1991. We are dedicated to helping our partners save time and make money by offering products that are easy to apply and proven to work.
For superior penetrating protection, our Deco 20 Clear Penetrating Sealer is an industry standard. It creates an internal dam against water intrusion and is ideal for waterproofing concrete foundations, driveways, and masonry. It dries clear with a matte finish, ensuring the natural beauty of the concrete remains intact.
If your project involves decorative concrete or pavers, our line of decorative sealers offers the protection you need without the maintenance headaches of high-gloss coatings. We focus on matte finishes that protect the substrate while looking natural.
Our goal is to provide applicators with quality products and free training to ensure superior results. Whether you are sealing a massive commercial deck or a residential patio, we have the solution.
Ready to upgrade your product line? Contact Deco Products, Inc. today to learn more about our sealers or to find a distributor near you.
