Tiling onto Painted Walls ???

[beanz]

would 've thought that if it was emulsion it would've absorbed through into the gypsum, thus not forming a skin, as it's water based and not poly vinyl acetate it shouldn't skin, unless,it (p/board) had already been primed:huh2:

Ah okay, cheers Doug. Always learning...

 

[doug boardley]

Ah okay, cheers Doug. Always learning...

me too mate

 

[DHTiling]

Ah okay, cheers Doug. Always learning...

Or a silk paint was used with out a primer coat( miscoat) and this will still peel.....

 

[doug boardley]

yes, there are a few possible scenarios, Derek had best check with client as to how p/board has been painted

 

[Perry]

Just another of my stupid questions, but if you leave the paint on the boards, will it not do the same as PVA and just add a skin which could fail under the weight of tiles!?!

would of thought it could need to ask a painter that one ? 😛ete

 

[derekdickinson]

Evening lads, I have checked with the customer about how the walls were treated, he cant recall other than to say non have been plastered to keep the costs down, all have been drylined and painted only, drylining only means that they put tape on the joints and smoothed them over he recalls... The builders only used 9mm plaster board on the walls, so when the orignal tiles were pulled off by another chap, the wall came with it, I've had to rebuild two walls the other two still have the paint on, I've put some Gaffa tape on it for half an hour and when I peeled it off the paint stayed on the wall is this a true indicator which can safely be used.. Just want to say a big thanks to all for your help...

 

[doug boardley]

it's been emulsion then Derek, it's impregnated right in.It won't become live like pva. From your info, I think it is safe to tile straight onto, but priming with an sbr type primer will be advisable, but not pva!!!
Doug

 

[BDS]

And scoring it would aid aswell,,,,

 

[White Room]

12.5mm boards would have been better but 9.5mm just needs more stud work which hopefully was applied. Surpised that the builders used the thinner board, If the paint remained then your onto a good thing

 

[doug boardley]

builders boarded it whitebeam we would have used 1/2 inch board!