Get some Sherwin Williams Lox ON. clean your walls real good, spray,
roll whatever the Lox On, on. Mastic over it.
Bob F wrote:
"David Nebenzahl" wrote in message
s.com...
Any suggestions on how to tile a painted wall? It's in a kitchen,
painted in semi-gloss. How about if I just scratch up the wall surface
really well: can I then use thinset directly on the wall?

Replies from those with actual experience setting tile especially
appreciated.

Some thinsets say that they are suitable for use on paint I believe.

Bob