Mark coughed up some electrons that declared:


Both a SBR sand/cement screed or a Latex screed should if mixed and
applied properly be ok.
Fwiw my preference has always been an SBR screed.


Thanks Mark.

OK - do you don't slosh diluted SBR all over the substrate first, like you
would with PVA?

I was also looking for a liquid chemical that could be liberally poured
through holes and cracks to lock up any friable material underneath.

Cheers

Tim