On 22 Aug, 20:37, NT wrote:
I was talking with a tiler today, he says he's used plaster as a tile
adhesive before. He used thistle, plastered the wall, and reckoned he
then had about 2 hours to place the tiles straight onto the plaster,
and it worked fine. Looks like we have a good candidate for an
unproven but probably viable low cost tile adhesive.

NT

Was he wearing chaps and spurs?