Types of Grout Sealer Explained

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What You'll Need
Grout Sealers
What You'll Need
Grout Sealers
Grout sealers are used in many different tile projects and applications. They prolong the overall look of the tiled floor and maintain the cleanliness and overall appearance. Grout sealer really has become an essential part of properly tiling a floor. Grout is porous and once the sealer is applied and once it has dried, any liquid that may come into contact with the grout will have a hard time penetrating beneath. Below are a couple of different types of grout sealers that can be used.

Spray Grout Sealer

Using a spray-on grout sealer should be left to the professionals because it is pretty easy to coat the surface of the tiles as well as the grout that you are sealing. You will quickly seal the grout using a spray-on application, but you will also need to spend more time cleaning up the tiles from overspray.

Applicator Grout Sealer

A spray-on grout sealer is an easy, but sometimes labor-intensive application, for grout sealer. The applicator or brush-on type of sealer is used and applied directly to the grout with a roller or with a brush. The sealer is a milky white color and can be applied to clean tiles.

Penetrating Sealer

The penetrating sealer is a type of sealer that is used to penetrate right into the grout. After you apply the sealer, it will soak right into the grout. This type of sealer is great to use if you are looking to apply a different color to the grout or to darker the original color. They will help to create an additional tint on the grout. A penetrating grout sealer makes it much more difficult for staining to occur on the grout from spills.
If you are looking to maintain the color or pigment of your grout, then purchase a non-pigmented penetrating sealer. This type of sealer will still penetrate into the grout but it will not produce any type of gloss.

Membrane Sealers

You can use this sealer and it will resist water and damp conditions. They are used generally to help color the grout and add harsh pigment to the grout that has already been applied. This type of sealer should not be used around showers or bathrooms because it will not adequately allow the grout to dry. It tends to trap the moisture in, rather than allowing it to escape.
Membrane sealers are good to use in front entryways or in other areas that will not receive a lot of foot traffic or that will not be in contact with a large amount of dirt and grime. Membrane sealers have to be reapplied every couple of years.

Sealing Grouts

Use the sealers when you have a grout that is water-based. Do not use the sealer when the grout is made from any type of epoxy.