Tiling on a painted plasterboard. HELP

[Stavs tiles]

Hi guys,

Hope you can help on this.

On a painted plasterboard can you tile directly on this?

I was thinking of scribingthe wall with a Stanleyknife every 2 inches so the adhesive has something to grip on, then rough sanding it and then cleaning it and using BAL Acrylic primer?

Or can I just tile over the paint providing the paint is not flaking off?

Any tips would be great. Just want a good strong bond. I will be using BAL rapid set adhesive.

Cheers
Stav

 

[Rich Midge]

What's it been painted with? I definitely wouldn't scribe it, you'll irreparably weaken the structure of the boards. Try sanding it back. Could you over board it or cut it out and replace?

 

[Stavs tiles]

Hi Rich, it's white emulsion paint.

Don't really want to board it again. It's a new build flat only 3 years old, so was hoping if I primed it up with acrylic it would give the adhesive something to grip to?

Attached are some pics of bathroom, the white small Ines will be removed.

Thanks

 

[Unused Account 1]

Just prime it and tile ,what size tiles you using

 

[WetSaw]

If those tiles have been put on properly you'll probably be replacing the plasterboard anyway.
What tiles are you putting up and are you tiling the whole wall?

 

[Stavs tiles]

Thanks guys, hoping the small tiles will come off ok, if not will have to reboard. I'm using 600x300 ceramic Matt tiles. Using BAL rapid set adhesive.

My main worry is just want the tiles to be bonded secure on the current wall :0

 

[Stavs tiles]

PDC sorry, tiling all the wall flirt to ceiling.

 

[Rich Midge]

I'd sand, clean then prime. Prime first with a quite a dilute mix so it absorbs right through the paint say a 5:1 mix then when that's dry go over again with a 3:1.

 

[Stavs tiles]

Thank you so much Rich, really appreciate your help 🙂

Will be using the BAL prime APD this is Acrylic based.

 

[One Day]

I'd suggest you call BAL technical tomorrow morning. They'll tell you!