rob1953 replied to the topic Tiling over the top of existing tiles? in the forum Value Adding 11 years, 8 months ago
the only way to reliably tile or existing tiling is to provide a mechanical key for the tile adhesive. Glazed / fired tiles will not provide such a key so you have 2 options – prtially grind the surface as described above, or apply a coat of Ammonium biflouride which will etch into the glaze and make it suitable for tiling. Be careful of this…[Read more]