F
Flintstone
who usually primes the back of a cement coated board? I have some times and not others
Just wipe them down with a damp sponge/cloth.
F
Flintstone
They won't suck the life out as there is only a very small skim or cement on them and then it's foam
M
MW Smith Ceramics
S
Stef
I prime before I tile but I don't prime the backs of the boards.
It's only recommended to prime the back & sides of a ply wood overlay.
It's only recommended to prime the back & sides of a ply wood overlay.
W
White Room
Never primed a cement coated board as in wedi, marmox etc...
M
MW Smith Ceramics
I always prime Hardi & no more ply but just run over cement boards with a very damp sponge before fixing onto them....
S
Stef
Hardie is a cement board.
They state you only need to wipe over boards with a damp sponge but I prime them as there isn't going to be an adverse reaction to doing it..
Almost everything I tile gets primed.
H
hmtiling
I prime insulation boards so the ufh sticks to them better
L
LM
It depends on the make of primer, they all have different densities. It'll tell you in the data sheet. Treat it like your priming a skimmed wall, first coat well diluted 2 or 3-1 to allow it to soak in and second coat 2-1 or neat, it depends on the primer
There are similar tiling threads here
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