Tiling bonding

[Bungle]

Hi all, newbie tiler here.
ive recently finished a 3 day tiling course and now have a big house (4 flat conversion) to tile.

Im ok with the floors but I'm not sure about the walls. The plaster is pink but it is not smooth like finish plaster. I think it's bonding or hardall or something . The plasterer says its ok to tile on but I thought I'd get a 2nd opinion from you guys. The plasterer is Irish so he's no east European chancer.

Just wondering what you guys think ?

thanks in advance

 

[Andy Allen]

he proberly told you to p.v.a it as well !!!, if its bonding plaster then it needs to be skimmed..

 

[kilty55]

hi bungle,could you upload some pictures of thisplaster and we can advise exactly what it is?

as andy says if its bonding its not suitable to tile onto...

 

[Alan M]

irish plasterer. there worse than the eastern euros. at least some of the jobs iv seen lately.
1/2" build up in the corners on new stud and slab.

 

[widler]

IMO there are not any backing gypsum plasters i would tile onto unless skimmed, only S&C render


---
I am here: http://tapatalk.com/map.php?k2yb4b

 

[Bungle]

Thaks all. Just spoken to the plasterer and he says it's hardwall. I have to say it is very flat. He tiles himself and says its a perfect surface to tile onto


Andy. I will Pva the back of the tiles if you think that will help. My instructor never mentioned this on the course.

Alan m. I have always heard that Irish tradesmen were some of the best. I know the Easterns are rubbish.

Thanks again
happy tiling:hurray:

 

[Gazzer]

According to this info Broken Link Removed

Tiling
Tiles up to 20kg/m2 can be applied directly to the Thistle finish.
If plastering to provide a background for tiles, avoid polishing
the surface. Polished plaster surfaces should be roughened
and a suitable primer used. Tiles should not be applied
directly to Thistle undercoats, with the exception of
Thistle Dri-Coat.

Broken Link Removed

 

[Bungle]

Cheers sir ramie, that's the stuff. He had to use it because the house had caught rising damp. Turns out he was correct after all.

Should I still Pva the back of the tiles ?

Thanks again

 

[bobbynz]

I dont think he would have had time to tell you everything in 3 days
If you are unsure of anything then ask here.There are several hundred years of knowledge and experience to glean from.
You have made a good start already by asking a question keep it up.


3 days!!!!!? :yikes:

 

[Bungle]

I dont think he would have had time to tell you everything in 3 days
If you are unsure of anything then ask here.There are several hundred years of knowledge and experience to glean from.
You have made a good start already by asking a question keep it up.


3 days!!!!!? :yikes:

Yea I reckon I have more to learn but I couldn't really afford the full 2 week course.

My mate did the one day course and all they taught him was tiling and grouting. Nothing about adhesives or setting out. He's gonna come with me on this conversion job

 

[Andy Allen]

i was being sarcastick, NEVER use p.v.a in tiling....

 

[Gazzer]

Cheers sir ramie, that's the stuff. He had to use it because the house had caught rising damp. Turns out he was correct after all.

Should I still Pva the back of the tiles ?

Thanks again

The way i read it is....tile to finish not Hardwall. Read the PDF file.

 

[Gazzer]

Cheers sir ramie, that's the stuff. He had to use it because the house had caught rising damp. Turns out he was correct after all.

Should I still Pva the back of the tiles ?

Thanks again

PVA ??? The back of the tiles ?.....Go back to your 3 day course and ask for your money back !
Sorry to sound harsh but you are not ready !

 

[Bungle]

No I mean the plaster was that dry coat stuff. When I asked him he said it was a bit like hardwall but was for damp walls. The guy seems to know his stuff all right

 

[Bungle]

They never mentioned Pva on the course Andy Allen did sarcastically

 

[Gazzer]

No I mean the plaster was that dry coat stuff. When I asked him he said it was a bit like hardwall but was for damp walls. The guy seems to know his stuff all right

So basically you dont know what you are tiling to ??

A good reputation takes years to achieve, a bad one minutes and can last a life time.....Fail to prepare, prepare to fail.
Always know what you are doing and never take other trades word for it, when it fails, it will be your head on the chopping block, not theirs.

 

[Bungle]

I had never heard of this backing plaster that's why I asked on here. When a plasterer gives advice (well the proper ones anyway) you know it's going to be good owing to the high skill level of their job

 

[Andy Allen]

ive met many plasters that still think its fine to tile on to under coat gypsum plaster, there famous saying is 'just p.v.a it'......hence my sarcastic comment...

how big is this job?......and how long have you been tilng?, knowing about the correct primers to use really is basic stuff...

 

[Bungle]

ive met many plasters that still think its fine to tile on to under coat gypsum plaster, there famous saying is 'just p.v.a it'......hence my sarcastic comment...

how big is this job?......and how long have you been tilng?, knowing about the correct primers to use really is basic stuff...

Its 4 bathrooms, 2 ensuites and a small amount in 4 kitchens.

I did the course about a month ago so only been tiling 3 weeks.
im gonna use waterproof adhesive in the bathrooms and flexi on wooden floors

 

[Gazzer]

I had never heard of this backing plaster that's why I asked on here. When a plasterer gives advice (well the proper ones anyway) you know it's going to be good owing to the high skill level of their job

:lol::lol::lol:

 

[Gazzer]

Its 4 bathrooms, 2 ensuites and a small amount in 4 kitchens.

I did the course about a month ago so only been tiling 3 weeks.
im gonna use waterproof adhesive in the bathrooms and flexi on wooden floors

Waterproof adhesive ? Epoxy is it ?

Flexi ? Adhesive? No backerboards ? direct to timber ?

You really need to start all over and 1st question is....What is this plaster on the wall? If its a backing plaster then it is no good to tile to.

 

[Bungle]

It's that thistle dri coat mentioned in that PDF u posted. According to the plasterer and your PDF I can tile it :mad2:

 

[Bungle]

I'm just asking some advice guys

 

[Polishtradesman]

I tell you what Bungle. You call yourself tiler and ask to use PVA back of tiles. You want to use wood glue to tile and you call me rubbish??? I have never heard such an idiotic way to recognize someone skills. Your building knowledge is a rubbish.

 

[Gazzer]

From the PDF
Overview
Thistle Hardwall is a gypsum undercoat plaster for use on
most masonry. With a final coat of Thistle Multi-Finish, it
provides a smooth, inert, high quality surface to internal
walls. The combination has superior impact resistance, earlier
surface drying, a higher than normal resistance to efflorescence,
and gives a durable base for the application of decorative
finishes.

Tiling
Tiles up to 20kg/m2 can be applied directly to the Thistle finish.
If plastering to provide a background for tiles, avoid polishing
the surface. Polished plaster surfaces should be roughened
and a suitable primer used. Tiles should not be applied
directly to Thistle undercoats, with the exception of
Thistle Dri-Coat.