grout flakes out of tile/granit joint
We have black granite counter tops in the kitchen and white tile backsplash. The contractor put white grout under the first run of the tile where it meets the granite counter. I am assuming he did not put anything under or behind the granite counter against the wall and under the tile to hold the grout. Anyhow, that line of grout keeps flaking off at the lightest touch. I saw something on a tv remodel show where it looked like they mixed powdered grout with a silicone caulk for that joint. Is that the answer to my problem? If so, how do I do it and what products do I use?