Larry Jaques wrote:

Good idea. Take a quart sprayer with water in it up to the ceiling
and test an area you'll cover with a fixture.
http://goo.gl/RlZfC This is the stuff, right?

Larry, I put a fresh picture on my web site:

http://web.newsguy.com/MySite/

I apologize that it's 5 MB, but this jpg accurately reveals the hidden
beauty of the stuff.

Bill