Slate tile flaking in shower. If a film of dirt and soap scum is present on the slate tiles then the sealer will. It will cause flaking. If sealed properly and cleaned regularly its an all-around good performer in this application. This is especially true during the first few months after installation because they may go through a normal process of spalling which means that small pieces may flake off the surface. Aquamix has been popping up on some sites. Hello we have slate tile in our kitchen that was put in maybe 15 years ago not by us. I have a lot of slate floors – all high quality tiles so no flaking.
In a few places the slate is flaking off. The home was completely remodeled in. After you have sealed one wall of the slate tile shower then move on to seal the next adjoining shower wall. Just make sure to use the right type of slate for showers.
I recently purchased a home that has a shower tiled with 4×4 slate with a fiberglass garden tub and the slate tile in the two or three rows around the tub is crumbling and flaking away pieces up to 1×1. However before you seal the slate you will need to wash it and wash it just mop and bucket of water until the water is clear. I believe the solution is that it needs to be sealed. Just make sure to use the right type of slate for showers.