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 If the garment canât be washed in hot water and bleach, soak it in a solution of 1/4 cup oxygen bleach (labeled âall fabricâ or âperborateâ) in 1 gallon (3.7 liters) warm water for 30 minutes before washing. 2  Remove mold and mildew from the grout between your bathroom tiles. Remove mold and mildew from the grout between your bathroom tiles. 2  Mix equal parts of chlorine bleach and water in a spray bottle, and spray it over grout. 3  Let it sit for 15 minutes, then scrub with a stiff brush and rinse off. 4  You can also do this just to make your grout look whiter.