Craig M wrote:

wrote in message
...

My client wants ceramic or porcelain tile on her back porch. The
previous owner had glue-down green carpet/fake grass there. My
question is: Can I put thinset down on top of the remaining skim
layer of carpet glue?

An Internet search gives me advice all over the map: remove it with
solvents/don't use solvents because they soak into the concrete and
keep thinset from sticking; remove it with abrasives/don't because
it just melts and wastes time; remove and replace an obscenely
thick layer (1/4 - 1/2 inch) of concrete.

* The surface is smooth and even, and it is sloped properly.
* I power-washed it awhile back, and the glue washed off just
slightly. * I plan on scraping with a 4" razor in any case.

The fact that the glue dissolved slightly makes me hopeful that
water-based bedding material will "bond" with it. On the other
hand, it makes me worry, also, that it won't.

I'll take any advice I can get.

If it is water based, I would try a scrubber/buffer, the big ole
fashioned kind that is used for comerical floors, for buffing and
stripping wax, my local home depot rents them, get some of the
corsest pads they have, and some simple green and water, put some
down and start scrubbing, I have had the guy at the rental store in
home depot tell me people use them to clean off slabs in prep for
tile and other floors to go down to the slab, and I think running a
big buffer is pretty fun also. stay away from the high speed models,
they are used to buff out the wax, but buffer is a generic term for
most of them. Good luck "SteveBell"

This sounds like it would work. Thanks for the suggestion.

--
Steve Bell
New Life Home Improvement
Arlington, TX