Can You Color Seal Grout That Has Already Been Sealed?
Yes, in many cases you can color seal grout that has already been sealed, but there is one important catch: the existing sealer cannot prevent the new color sealer from properly bonding with the grout. This is where homeowners sometimes run into trouble. They see stained, uneven, or outdated grout, buy a color sealer, and assume they can simply paint it over whatever is already there. Sometimes that works. Sometimes the previous sealer is still doing its job a little…