Answer
Apr 18, 2021 - 07:52 AM
GBS Penetrating Concrete sealer was designed for porous concrete that has not been previously sealed and has no wax or other finishes on the surface. It can be used on grout as well. The goal of this product is to block moisture from above and below. However, it will not darken the surface or change the surface appearance at all. It will strengthen the concrete and the grout and prevent efflorescence, spalling and freeze thaw. However, it will not prevent staining on the surface because it is not a surface sealer. For that we recommend the GBS Penetrating Gloss sealer which is the same as above but with acrylic that adds a gloss finish to the surface. Another option is our AFM Mexeseal which is a topical sealer only and protects the surface from staining too. It comes in different sheens too. We highly recommend that you test both of these first so you know what it will look like and how it will perform.
