- Concrete Sealer
- Comparison Chart of Concrete Sealers
- Buying Tips for Concrete Sealer Products
- Concrete Sealer Reviews: Sealer products other contractors use and recommend
- Common Questions about Concrete Sealers
- How to Remove Concrete Sealer
- Types of Sealers
- Acrylic Sealers
- Epoxy Sealers
- Penetrating Sealers
- Polyurethane Sealers
- Polyaspartic Sealers
- Application Surface
- Driveway Sealer
- Patio Sealer
- Pool Deck Sealer
- Sealers for Stamped Concrete
- Concrete Floor Sealers
- Concrete Countertop Sealers
- Pool Deck Sealer
- Exposed Aggregate Sealer
Polyurethane Sealers for Concrete
Use these high-build sealers to produce a very durable, chemical-resistant finishPolyurethanes sealers are nearly twice as thick as an acrylic sealer and form a high-build protective film on the concrete surface that provides excellent resistance to abrasion and chemicals. They are available in water- and solvent-based versions and a range of sheen levels. They can be used on both interior and exterior concrete to impart a transparent, non-yellowing, highly durable finish.
Applications
Typical applications for polyurethane sealers include:
- Floors in high-traffic areas, to provide good resistance to scuffs and staining
- To enhance the beauty of colored, stamped or exposed-aggregate concrete
- Concrete countertops
Most polyurethanes are moisture intolerant until they cure, so they should not be applied to surfaces if any water is present. A chemical reaction will occur that results in foaming and bubbling. They also don't allow for moisture vapor to move out of the concrete, which could present problems on some exterior concrete surfaces, such as driveways.
How to apply
Polyurethane sealers require more care when applying compared with single-component sealers, such as acrylics. Avoid applying water-based polyurethanes with a garden-type pump-up sprayer, since they don't reach the level of pressure needed to achieve a thin, even spray pattern. Instead, use a low-volume, high-pressure airless sprayer. Polyurethanes can also be applied with a micro-fiber mop, using a push-and-pull motion to get thin, even coverage.
Related resources
Choosing the Best Applicator for Concrete Sealer
Advice on Choosing and Applying Sealers
Polyurethane Reacts with Water
Causes of Bubbles in Polyurethane Sealer
D-One Penetrating Sealer
Non-yellowing, low sheen, good adhesion
Deep Penetrating Sealer
RadonSeal - Waterproofs & strengthens.
Clear-Seal by Increte Systems
Seals and protects decorative surfaces.
Heavy Duty Oil & Stain Protector
TS210 - 4 gal. kit ($439.95)
Colored Concrete Sealer X-4
High gloss finish available in 20 colors
Gem-Guard SB
Penetrating sealer that protects against salt damage
Decorative Sealers
Reactive and penetrating formulas in various levels of gloss.
Water Repellent Penetrating
Sealer for driveways, parking structures, plazas, walkways & more.
Clear Acrylic Concrete Sealer
$219.30 (5 gal.)
