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Tile straight over it, ...... I'm a tiler
Usually wall tiles are put up with a mastic, ABA mastic in a yellow drum will do nicely.
The onlyndownside to not putting cement sheet on top of the gyprock up is if you ever retile it you have to replace the gyprock plaster. Assuming the gyp rock plaster is either the green or the brown variety..... And although you could apply a sealer over it I've never seen any tiler do it yet, never seen them acid wash concrete prior to starting, although if you are using a tile on timber product for floors, that I would prime.
Last edited by Alchemy; 12-10-2010 at 08:01 PM.
Reason: More info
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