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.
Step 11: Seal the tile. Once the grout is fully dry, usually 24 hours to 3 days later, apply grout sealant to protect your backsplash from staining. After the sealer is dry, you can add a small amount of latex caulk to the base of your backsplash where it rests against your countertop.tep 1: Measure your wall. To determine the amount of tile you need for your kitchen backsplash, calculate the wall space. If you only have one section to cover, simply multiply the width and height of the wall to get a square footage. The square footage determines how much tile youâll need for the project.