The best time for you to learn how to seal grout is right after you have installed new tile. When you install sanded grout, it may take up to a week for the grout to dry out completely. When you installed non-sanded grout, it may be completely dry in just a matter of a day or two. The best thing to do is to wait until the tile grout is completely dry before applying a grout sealer. Once the tile grout is dry, it will be able to absorb a lot more of the sealant. The purpose of the sealer is to make the rough surface of the grout become smooth. By applying multiple applications of a grout sealer, you enable the grout to completely seal the porous surface of the grout. Once the porous surface is sealed, the grout will be immune to having dirt and germs ground into its surface.
After you have properly applied a grout sealer, you are going to save yourself a lot of time. You won’t have to clean as often and you won’t have to worry as much about getting severe grout stains in your tile grout. The key is to seal grout early, or to seal it after it has been thoroughly cleaned. You don’t want to seal dirt underneath the application. Also, you want to reapply the grout sealer when ever it is needed. For most homes, grout sealing depends on the amount of traffic and the amount of water that you get on the surface of the grout. Probably on average, grout needs to be resealed every 6 to 12 months. Water-based grout sealers don’t seem to last as long as other types, but they are more portable if you are on a budget. In addition, you can save some time if you apply the grout sealer with a roller brush, rather than a paintbrush.