BAL Quickset render over PVA primed masionry - Tile Advice

[gpholman]

Hi,

I've removed the tiles from my bathroom and had to cut out some largish patches of blown render / plaster underneath them. I was intending to plaster over these patches, so I prepeared the wall by cleaning them and priming with a 5:1 PVA solutiuon. Since then I've decided BAL quickset render is the way to go (mainly due to time for plaster to cure and skill required to do a decent plastering job). My questions is can I use the quickset render now I've used PVA to prime the surface already? Should/can I still use BAL APD Primer first?

Thanks in advance.
Grant

 

[bugs183]

Sounds like Bal Bond would have been a better product, PVA is duff.
Phone Bal Technical helpline to see what they advise.

 

[NZ_Tiler]

Sorry gpholman but you will have to remove that PVA and use a suitable primer. Here is a link explaining why

http://www.tilersforums.com/tile-adhesive-grout-substrate-preparation/2511-p-v-versus-primers.html

 

[tobins tiling]

PVA :yikes: Swear word on here mate

 

[gpholman]

Thanks to all for replying so quickly.

NZ_Tiler - the link seems to be about problems with tiling adhesive onto PVA, do the same issues apply with quickset render?

Tobins Tiling - what can I say, I'm young and naive. Well, not so young actually....

Cheers

 

[tobins tiling]

Haha just joking mate hope you found out all you need to know about it from the thread, think you'll have to strip that PVA back grant and prime it with a primer good luck mate

 

[kilty55]

hi gp,bal apd is what bal reccomend for plaster walls i think

 

[AliGage]

Hi gpholman. Both tile adhesive and render are cementious, so i would say yes.

 

[NZ_Tiler]

as AliGage has said, they are both cementious, and the PVA will reactivate when the wet plaster is troweled on, and affect the adhesion.

 

[Diamond Pool Finishers]

i agree with the other guys PVA is not a good product for wet situations ie bathrooms/wet rooms,or any areas where damp may be around ..........

 

[NZ_Tiler]

donate the PVA to the local kindergarten, its all its good for...

 

[widler]

i actually think he is on about using PVA before plastering,not to seal the plaster before tiling,which using a weak PVA to dampen a wall before plastering is fine

 

[AliGage]

I understood it to be to prep large holes in render for making good?

 

[widler]

I understood it to be to prep large holes in render for making good?

patching plastering or rendering same thing,pva fine to kill dust and suction