Concrete sealers are commonly used in the construction industry. They make concrete resistant to abrasion, oil and grease stains, deicing salts and water. They do not only make a concrete easier to clean but also they enhance its beauty. Indeed, sealing concrete surfaces is beneficial. Applying a sealer to a surface is easy and doesn’t take long. The procedure neither requires special skills nor expensive equipment.

Types of concrete sealers:

sealing concrete

Penetrating sealers

These types include siloxanes, siliconates, silanes, and silicates. They penetrate the surface of a concrete after which they react chemically forming a strong bond with the substrate. This prevents deicing chemicals and moisture from entering the concrete and causing damages. They are appropriate for sealing concrete surfaces that are subject to freeze-thaw and corrosion damages.

Acrylics sealers

They create thin protective films on the surfaces. They occur in water- and solvent-based formulations. They can be applied on both interior and exterior surfaces. They enhance the color of the surfaces and usually dry after a short period. These sealants offer protection against chloride and water intrusion.

Polyurethanes

These kinds of sealers occur in water-based and solvent-based formulations. They form strong protective films on the surfaces. They are mainly applied in high-traffic areas to offer resistance to staining and scuffs. They are thicker than acrylic sealers and form durable abrasion- and chemical-resistant surfaces. Any concrete floor sealer classified under this group should only be applied on a dry surface.

Epoxies

These types are applied to the concrete surfaces to create high-build protective films. They produce an abrasion-resistance finish. They do not only form impermeable layers but also can trap moisture within the concrete.

Procedure to follow when applying sealer:

Surface preparation

This is a very important stage. All stains, dust, dirt, grease, and oil should be removed in order to make it easy for the sealer to adhere properly. If the surface had another type of sealer, all the traces of the previous type should be removed. Etching the surface with the help of etching solution is highly recommended.

How and when to apply sealer

This is the most important part of the concrete sealing process. To acquire the most appropriate thickness and best coverage rate, you must use the right tools in the course of application. Sprayers and rollers are the main tools used when applying these substances. Before you decide on the type of tool to use, you need to know whether the sealer to apply is either water-based or solvent-based.

Most sealers should be applied to a dry surface and under dry conditions. Applying them to a damp concrete is highly discouraged because they do not adhere properly. The application should be done when air temperatures are above 50° F. The sealer should not be exposed to vehicle or foot traffic until it dries.

Reasons why you need to seal your concrete

When sealer is applied to a concrete surface, it forms a protection film. This does not only make it stronger but also it enhances its durability. Service lifespan of a concrete can also be extended with the help of other substances like the reinforcing steel mesh. Sealed surfaces are easy to maintain and clean. Occasional mopping and sweeping can keep the floor in good condition. This shows that sealing concrete surfaces is important.