On 2 Nov 2005 10:47:20 -0800, "dean" wrote:

Yeah ok. Chimney guys told me to use something today that I don't
remember what it was. I said silicone and they frowned at that, but
that's probably still what I'll use.

Thanks all,

Dean
(ps that part is called the crown, as I found out today!)

I'd be inclined to use polyurethane caulk...it sticks better to mortar
and the good stuff is rated for 50 years. I used it to caulk the
joint between some stone stair treads and the brick risers. After a
couple of days I tried to remove a little section to redo it neater
and I could *not* get it out; it just would not separate from either
the stone or the brick, no matter how I pulled it or pried it. The
stuff I bought was colored to match concrete (not that it really
matters on a chimmeny cap).

They've started carrying it at the big box stores round here (OH).

Paul