Tiling Onto Carlite Bonding !

[Perry]

This is what British Gypsum say
• Thistle plasters can be decorated
with most paint finishes and
wall coverings by following the
manufacturers’recommendations.
• Impermeable finishes, such as tiles,
should not be applied until the
background and plaster are dry.
• Take care withThistle Hardwall land Thistle Tough Coat which dry
from the surface, appearing surface dry before they are fully dry.
• Tiles up to 20kg/m2
can be applied directly to Thistle finish
coats. If a bonding agent is used the limit is reduced to
12kg/m.
2
• Tiles should not be applied directly to Thistle undercoats,
with the exception of Thistle Dri-Coat.
• Where tiling onto finish plasters, avoid polishing the surface.Where the surface is polished, roughen and apply a suitableprimer.

 

[Andy Allen]

i think it may allso say on the back of the bag 'not suitable to tile to'...

 

[White Room]

This is what British Gypsum say
• Thistle plasters can be decorated
with most paint finishes and
wall coverings by following the
manufacturers’recommendations.
• Impermeable finishes, such as tiles,
should not be applied until the
background and plaster are dry.
• Take care withThistle Hardwall land Thistle Tough Coat which dry
from the surface, appearing surface dry before they are fully dry.
• Tiles up to 20kg/m2
can be applied directly to Thistle finish
coats. If a bonding agent is used the limit is reduced to
12kg/m.
2
• Tiles should not be applied directly to Thistle undercoats,
with the exception of Thistle Dri-Coat.
• Where tiling onto finish plasters, avoid polishing the surface.Where the surface is polished, roughen and apply a suitableprimer.

They used to say 20kg m2, holy moses.

 

[Monkey Wrench]

Thanks for the additional posts and to pjc as I tried to find that info on the British Gypsum site but couldn't see it anywhere.

Ok, so if the plasterer skims the carlite bonded walls, I assume he will have to PVA them first. If that is the case, will I then be limited to 12kg/m2 or 20kg/m2 ?

 

[Perry]

Mark is plaster next to go like plywood :yikes:

 

[White Room]

Mark is plaster next to go like plywood :yikes:

You maybe right there Pete.....

 

[White Room]

Just found this from the BG website, wish there'd make there mind up.

Tiling onto plastered surfaces
Skim plastering is not normally specified to Gyproc moisture
resistant grade boards.Tiles up to 20kg/m2
(including adhesive and
grout) can be applied directly to Thistle finish plasters, except where
the system includes a bonding agent. In this situation the total
weight of tiles and plaster applied over a bonding agent is limited to
20kg/m2
, therefore consideration should be given to tiling directly to
the background. If plastering to provide a background for tiles, avoid
polishing the surface. Polished plaster surfaces should be roughened
and a suitable primer used. Consult the tile adhesive manufacturer
for guidance.
Tiles should not be applied directly to Thistle undercoats, with the
exception of Thistle Dri-Coat

 

[Bubblecraft]

So is it 20kg or 12kg? Lol. I would never tile straight onto bonding anyway.

 

[White Room]

I've skimmed for 20kg m2 for myself and other tilers for god knows how long so I would stick with the upper figure but it does say the weight of the finish to be included which is about 2kg m2 so tile weight with addy 18kg m2, confused.com.

 

[Perry]

Mark thats the trouble with plasters cant make their minds up :8:

 

[Monkey Wrench]

I've been doing some more research and found out that, if I have the bonded walls skimmed, I will need to wait for up to 4 weeks for it to dry :mad2:

Surely, not !

 

[Perry]

I've been doing some more research and found out that, if I have the bonded walls skimmed, I will need to wait for up to 4 weeks for it to dry :mad2:

always best to do this before you start

 

[Monkey Wrench]

I've been doing some more research and found out that, if I have the bonded walls skimmed, I will need to wait for up to 4 weeks for it to dry :mad2:

always best to do this before you start

I didn't ask the plasterer to use bonding ! I just asked for a finished service suitable for tiling.

 

[Perry]

I didn't ask the plasterer to use bonding ! I just asked for a finished service suitable for tiling.

did you pay him i hope not till he comes back and finishes yes not many people are any good in the building trade imo they don't even know about their own jobs let alone other trades bad when tilers know more about plastering than a plasterer feel sorry for you guys but most of the time these guys get the work because they are cheaper but not always some talk a good job

 

[White Room]

Dot and dabbing would speeded your job along...