Tiling over existing sound ceramic floor tiles

[sWe]

A bit late probably, but I just want to say this:

Epoxy primer is mainly used on surfaces with poor surface strength, or surfaces which are very unabsorbant, such as metal, certain plastics, and the densest grades of porcelain. For most normal situations, there are cheaper, less hazardous options.

 

[burncross]

why do you need to use flexi adhesive on a existing tiled surface with concrete sub-floor? :whatchutalkingabout