Repairing Plaster Before Tiles

[chrisb1357]

Hi all

We had some areas of plaster repaired by the council in the bathroom last year but I never gave the plaster a miss coat of paint etc after it dried and we are tilling the bathroom next month. Do I need to apply a mis coat or some other type of agent before we apply the tiles to these area.s

Chris

 

[PlumbGas]

PVA

 

[chrisb1357]

Mix of pva and water only on the new plaster area

 

[PlumbGas]

Yep, 2 coats. first more waterery and second thicker

 

[tpt]

no - DONT use pva!

use an acrylic bonding agent instead. same price and right for modern adhesives.

 

[PlumbGas]

no - DONT use pva!

use an acrylic bonding agent instead. same price and right for modern adhesives.

Never had a problem with PVA but thats not to say there may be something better, PVA works well though,

 

[tpt]

yep i know. its been used for years, but the new adhesives have polymers in them that react to it. Most manufacturers specifically say not to use it these days. best to stay away from it.

OP - dont mist coat it either.