The best time to apply a concrete sealer will vary depending on where in the country you are applying the concrete sealer, and the type of concrete sealer you are using. For example, in the North East the best time to apply an acrylic sealer is in the fall because it is cool and dry. Does that mean you can’t apply an acrylic in the Spring or Summer? No. You can apply a concrete sealer during any season, you just want to take weather into consideration and alter application time.

Here are a few tips for sealing concrete:

1. If you are applying an acrylic sealer to an exterior surface and the sun heats up the concrete to 100 degrees or higher, consider applying the acrylic sealer late in the afternoon or evening.
2. Avoid applying an acrylic sealer to an exterior surface in the early morning. In most parts of the country, there will be “dew” on the ground in the morning. Acrylics are moisture sensitive and the dew will cause bubbles or a white haze.
3. Don’t leave your concrete unsealed in the Winter. You can seal your concrete in the Spring, Summer or Fall, but don’t leave your concrete unprotected during the Winter. Freeze thaw cycles and de-icing salts will cause concrete to spall, pit and crack if not properly sealed.

Here are a few factors that impact sealer life and performance during application:

1. Heat: If you apply a sealer to hot concrete in the middle of a hot day, the solvent or water base could evaporate before the sealer has a chance to react or cure.
2. Water: Rain before or after an application will cause an acrylic to turn white, and it could dilute water repellent enough where they may not work. Make sure the concrete is completely dry during the time of application and be sure to keep your concrete dry for at least 24 hours after.
3. Cold: If you apply a concrete sealer to an exterior application and the temperatures are below freezing, chances are the liquid sent will freeze to.

When it comes to sealing interior concrete there aren’t many limitations. Even basements always remain above freezing. The most important factor to take into consider when sealing interior concrete is choosing the correct sealer for your application. Learn about Best Concrete Sealers.