Can I apply microcement on tiles?

For tiles, the cohesion and cleanliness of the surface are essential. It is not enough that the tile 'holds' on the wall somehow – problematic tiles need to be removed or repaired, joints unified, and the surface prepared so that the base layer adheres well. It’s not just about the substrate material but mainly about its condition. Before application, check for strength, flatness, grease, dust, cracks, and any movement. If the surface is risky, it is better to reinforce it or first create a test area. A more detailed procedure can be found in the related article: https://www.design-solution.cz/content/17-betonova-stěrka-na-obklad-dlazbu