Why and when should grout be sealed, and what type of sealer is used?

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Multiple Choice

Why and when should grout be sealed, and what type of sealer is used?

Explanation:
Sealing grout is about protecting the porous cementitious grout from staining and moisture after it has had time to cure. The best practice is to apply the sealer after the grout has cured for about 48–72 hours, following the product’s instructions. A penetrating sealer is commonly used because it soaks into the grout and forms a protective barrier that helps prevent spills and soils from penetrating the pores, making cleanup easier and preserving color over time. Epoxy grout, on the other hand, is non-porous, so it does not require sealing.

Sealing grout is about protecting the porous cementitious grout from staining and moisture after it has had time to cure. The best practice is to apply the sealer after the grout has cured for about 48–72 hours, following the product’s instructions. A penetrating sealer is commonly used because it soaks into the grout and forms a protective barrier that helps prevent spills and soils from penetrating the pores, making cleanup easier and preserving color over time. Epoxy grout, on the other hand, is non-porous, so it does not require sealing.

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