Do I need to PVA newly painted plaster/plasterboard?

[floydyboy]

YOU SEEM TO KNOW A LOT I SUGGEST YOU DO YOUR HOME WORK. IF THEY PRINT IT ON THE PACKAGING IT IS GAURANTEED WHICH IT DOES. SO BE GOBSMACKED NOW.

[Sir Ramic]

Yeah and years ago they printed it but when the tiles all fell off they had to pay because it was proved by a seperate ombudsman that the PVA caused the failure.

[floydyboy]

YOU MUST HAVE DONE IT WRONG

[Sir Ramic]

Originally Posted by floydyboy

YOU MUST HAVE DONE IT WRONG

Yep....we put PVA on the wall

[floydyboy]

I HAVE BEEN TILING FOR 17 YEARS AND WHEN PVA IS REC I WILL USE IT, IT IS WHEN U MIX IT TO THICK U GET THE PROBLEMS. I HAVE NEVER HAD A TILE FALL OFF.

[Sir Ramic]

Just a kid then? You carry on and use it.

[Sir Ramic]

Originally Posted by floydyboy

I HAVE BEEN TILING FOR 17 YEARS AND WHEN PVA IS REC I WILL USE IT, IT IS WHEN U MIX IT TO THICK U GET THE PROBLEMS. I HAVE NEVER HAD A TILE FALL OFF.

Oh and dont shout, i aint that hard of hearing yet.

[floydyboy]

sometimes you got to shout
cause some people r so thick u need to do your home work 17 years is enough to advise and by the sound of it i am advising u cause u only know BAL.

[Sir Ramic]

Actually i rarely use Bal so you need to do your home work and if the years decide who is right or wrong then my 31 years should settle it....but i doubt it....as i say you carry on with the PVA.

[floydyboy]

31 YEARS YOU SHOULD KNOW ALMOST EVERYTHING. LIKE I STATEDIN A PAST THREAD ALL ADVICE IS ACCEPTED [IF RIGHT] PLEASE TAKE TIME OUT AND HAVE A LOOK AROUND ALL THE TILE STOCKIST AND NAME THEM. I HAVE NAMED THEM AND DONE MY HOMEWORK THERE IS STILL A LARGE NUMBER OF ADHESIVES OUT THERE THAT REC PVA. GO AND LOOK AND PUT THEM ON HERE. [TUNNEL VISION]

[lukeo]

Ok, so if I score the area to be tiled and then prime with Mapei Primer G or BAL ADP I should be ok?

I really didn't realise you couldn't tile straight on top of emulsion. I kinda feel silly because we painted the walls BEFORE tiling, well, partly.

It seems very odd to me that it's considered OK for plasterers to use PVA prior to skimming a wall, but then a tiler who comes along afterwards and wouldn't use PVA.

Surely the same principle applies?

[floydyboy]

[quote=lukeo;60192]Ok, so if I score the area to be tiled and then prime with Mapei Primer G or BAL ADP I should be ok?

I really didn't realise you couldn't tile straight on top of emulsion. I kinda feel silly because we painted the walls BEFORE tiling, well, partly.

It seems very odd to me that it's considered OK for plasterers to use PVA prior to skimming a wall, but then a tiler who comes along afterwards and wouldn't use PVA.

Surely the same principle applies?[/quote yes it does. when moisture makes contact with pva it becomes active again BUT A BIG BUT the adhesive or plaster dries and so does the PVA giving it the adhesive properties but it only works if mixed correctly. to many people on here r primer mad . follow the recs