How Long Does Grout Sealer Take To Dry? 

 August 13, 2022

By  Dale Keese

Grout sealer should always dry properly, whether you intend to apply another coat or before you expose it to moisture. But how long should one wait for sealer to dry?

Most grout sealers in the market will be dry enough in 1-2 hours before you can reapply another coat. If you are waiting for grout sealer to dry before exposing it to moisture, it can take 24-72 hours. Always check the manufacturer’s guidelines for the best results.

Read on below to learn more about grout sealer drying times.

How Long for Grout Sealer To Dry

Grout sealer should be applied and then dried properly for the best results.

Failure to allow the grout to dry properly can lead to mold and mildew as well as cracks, flaking, and weak joints. Moisture can still penetrate grout when you use it without proper drying. Below are guidelines for sealer drying times which you can find helpful the next time you need to apply sealer.

How Long Does Grout Sealer Need To Dry Before Applying Another Coat

If you are applying grout sealer and need to wait for the first coat to dry before applying the second, the first coat should dry in around an hour or two.

How Long Does Grout Sealer Need To Dry Completely

Most grout sealers will dry completely within 24 to 72 hours. Certain factors will affect how quickly or slowly grout sealer will dry:

  1. Temperature: Grout sealer will dry quicker in warmer temperatures. The recommended temperatures for applying sealer is when the air temperatures are between 32-120F.
  2. Humidity: Low indoor humidity levels will speed up the drying process for grout sealer. On the other hand, high humidity will lead to longer drying times.
  3. Type of grout sealer: Different grout sealers have varying drying times. For example, acrylic-based sealers will dry quicker than epoxy-based sealers. To be sure, check the sealer packaging and the manufacturer’s recommendations.
  4. Coating thickness: Applying thick coats of grout sealer will extend the drying time, no matter what kind of grout sealer you are using.

To check if grout sealer has completely dried, simply place a few drops of water on the surface. If the water beads up, then it has dried properly. If the grout absorbs the water, you may need to wait longer for it to dry.


Several factors can affect how long it takes for grout sealer to dry completely. Understanding these factors mentioned above can help ensure your sealing project is done properly.

About the author

Hey, I'm Dale Keese.. thanks for reading.. hopefully this article can save you some time and trouble with your sealing job. I'm also in the process of making some video walk-throughs for youtube so check back soon! thanks

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