To prime or not to prime, that is the question. - TilersForums.com

[Gazzer]

If in doubt prime it has always been my way but how many would prime Moisture Resistant plasterboards ?
Now cost of primer isnt an issue but if you weigh up the time it takes to prime and drying time then that is the cost I dont like.
So how many prime plasterboards, MR or normal ?

 

[Alan.P]

Nope, not me

 

[mikethetile]

I dont prime plasterboard

 

[Steve H]

This is an interesting thread. I'm new to tiling and trying to find the best and most practical tiling methods. I know that there is something in cement based adhesive that doesn't like plaster, so therefore I do prime. But I guess that if the plasterboard is intact and nicely wrapped, even more so if it is moisture resistant; then Primer it would appear, is not necessarily needed. Thanks for this thread and the experienced opinions coming out.

 

[Stewart]

Depends on condition (if really dusty) or if it has been ames taped. But 9 times out of ten, I prime.

 

[doug boardley]

I mainly prime, but not MR boards unless there's bare edges ie external corners, then I'll prime those bits.

 

[TT Tiling]

i do prime on nom plasterboard but not on moistureboard , but if useing powder add i would ,

 

[Perry]

Only bare edges for me

 

[grumpygrouter]

I tend to prime plasterboard as sometimes the screws expose the gypsum core or the paper surface can be torn slightly and I always use bagged addy.

 

[DHTiling]

Same as sweety pete.. Bare edges..