Those with passionate views about how much to tip the pizza-delivery guy, please see the information in the footnote provided by two other sources. (For a look at the real reasons we tip and whether tipping has anything to do with the quality of service we receive, click here.)
Liquid Grout Sealer. 1  1. Allow new grout to cure for 48 to 72 hours before sealing. 2  2. Tape off baseboards and other nearby surfaces to prevent unintentional staining. 3  3. Apply sealer using a foam paint brush, paint pad or a small roller.  4. Wait 5 to 15 minutes to allow the first coat to soak into the grout.
1- How long should we let the tile and thinset sit before grouting? If you are using basic 12 x 12 porcelain field tile and bagged thinset mortar, wait 8 to 12 hours before grouting. - How long should we let the grout dry? You said you used a non-sanded grout, and if you got it from us, it should look something like this.... Polyblend non-sanded grout typically dries in 6-7 hours. The thinner the tile spacers you put in, the faster it will take the grout to dry.