I used a school plastic ruler to flick off the wax after discovering it would flake off with my thumb nail. Water and scrubbing brush doesn't work. Wouldn't want to use a metal blade in case scratched the tiles
I have 2 lines down all tile sof 2 boxes of porcelain tiles. Tried wiping off, even scrubbing brush....not shifted!!! What could I try , this is not simply a light coating