Preparing Dried Hardwall for Tiling

sa85

New Member
I have a bathroom that has been plastered in Thistle Hardwall and subsiquently found this can't be tiled onto as it need a top coat finish.

This was done 6 months ago so is now fully dried, I was looking at using Thistle GypPrime but the white books says "Tiles up to 20kg/m2 can be applied directly to the Thistle finish coats, except where the system includes a bonding agent.

What is the best method to prepare this for a Thistle MultiFinish?
 

Stewie03

Well-Known Member
so somebody came in floated your bathroom in Hardwall and didn’t apply any finish coats to the walls
 

sa85

New Member
Stewie in one!

I'm thinking a couple of coats of 4 parts water to 1 part glue and a multifinish over the top. The hardwall is proper dry, but worried about high suction from it.
 

Stewie03

Well-Known Member
Well if your having the whole bathroom tiled from top to bottom go cheap as s**t and get a chancer in to skim the walls the tiles will cover there dodgy attempt
 

Cockney1

Well-Known Member
Stewie in one!

I'm thinking a couple of coats of 4 parts water to 1 part glue and a multifinish over the top. The hardwall is proper dry, but worried about high suction from it.
go GIF
 
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