How to Seal Tile & Grout

 

Tackle one grout line at a time. You should only move onto the next area when there is a noticeable improvement in the color of the grout. When you are finished, allow the area to dry for at least 45 minutes before applying the sealer.

Choose Your Sealer

When choosing a sealer, you must consider the type of tile you are using and where you intend to install it, whether a kitchen, bathroom or elsewhere.

All sealers are different. Some sealers work best with marble and ceramic tiles, while other sealers handle more moisture better than others.

Typically, you can use either a penetrating sealer or a membrane-forming seal for your project. A penetrating sealer is ideal for damp areas such as bathrooms and showers, while a membrane-forming sealer works well in the kitchen.

Choose Your Sealer Applicator

It is crucial to choose the appropriate applicator for your project. You can use a variety of applicator tools, such as a foam paintbrush, a small roller, or a paint pad. However, not all applicators are the same - they have different purposes and the applicator you choose should depend on your specific project.

For example, if your grout lines are thin, you can seal larger sections of your walls or floors with a sponge by wiping over both surfaces at once.

If you have glazed tiles, you can seal the grout lines with an applicator brush or a specialty applicator bottle.

Apply the Sealer

To apply the sealer, it is ideal to work slowly and deliberately.

With your applicator of choice, start in one corner and apply the sealer in small areas at a time, working left to right. You need to cover every corner and apply the sealant in smooth, even coats.

By working systematically, your sealer will provide better protection and your grout lines will appear more consistent.

It is also important to remove the sealer from the tile before it dries completely. To avoid this issue, keep a dry cloth nearby to wipe off the excess sealer when necessary.

Apply the Second Coat of Sealer

Let the first coat dry for an hour before applying a second coat. Depending on the grout sealer you choose, allow 24 to 48 hours for the second coat of sealer to cure.

After the second coat completely dries, test the surface with a few drops of water. If the liquid beads up into droplets, you do not need another coat. However, if your grout does not absorb water at all, apply a third coat to ensure quality results.

What to Buy to Seal Grout

Before you begin, you must have the following materials on hand:

• Grout sealer
• Cleaning solution
• Grout sealer applicator (paintbrushes, foam rollers, sponge)
• Clean lint-free rag
• Gloves

If you need assistance choosing tile supplies or want to know where to buy grout sealer, the team at St. Louis Tile Company will be happy to help you.