On Mon, 7 Apr 2008 18:01:26 -0700 (PDT), Doc
wrote:

The guy at Home Depot said that if I use Liquid Nails to adhere my
window sills - which he said are some kind of composite marble, not
true marble - directly to the exposed wood frame of the window, over
time it will bleed through and become visible in the shape that it's
applied. His assertion was that I should nail lathe to the frame and
use thinset for the sills.

Thoughts?

I use clear silicone and Goop for everything. Never had a failure or
bleedthru yet.