Afternoon all,

Ive been a competant plasterer for a while and i am now slowly getting involved in more and more tiling which I am really enjoying ( only taking on basic jobs to match my experience ). I would like the pro tilers opinion on tiling on thistle hardwall plaster a more experienced platerer put me on to this stuff for bathrooms for levelling out before skimming as it dosnt hold the moisture like thistle bonding. Plus it sets like rock pretty rapid. Is it ok to tile straight onto and what sort of weight per m2 can it take? Any advise greatly received as I like to avoid nasty suprises!

you should not tile straight onto thistle hardwall or bonding full stop mate
you will need to skim it, allow to dry properly and then use an acryllic primer prior to tiling. the weight ratio will be 20kgm2....

if your tiles are going to be heavier than this, then you will need to reboard the walls in either plaster board or a suitable backer board to increase the weight ratio..

Thanks for the reply. A skim coat and enough time to dry out properly it is then! In the grand scheme of things I think dot and dab boarding out or hardibacker board in the future as a lot less effort and mess! Thanks again really appreciate all the help Ive got from this forum as I dont want to let the side down.