Render bathroom walls


New Member
Hello all hope you are well. I am about to render my bathroom walls, 4:1 Plasterers sand and cement scratch, then 5:1 PS and Cement top coat with plasterciser. I am rendering to brick double skin cavity. Can anyone tell me how to prepare the surface please? I was thinking of adding a slurry of SBR and S+C, or can i just wet the bricks?
The wall is to be tiled with some large tiles

Thank you
Either way would do. I guess if your not sure your not a plasterer???

A sbr slurry left over night will kill the suction giving you more time level the walls.

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