RCM only

On Wed, 07 Oct 2009 21:41:31 -0500, the infamous "Martin H. Eastburn"
scrawled the following:

Also when you build something out of pipe - the wrenches eat
up metal and it will rust.

I build a weather station from pipe and before I put it into concrete
or mounted anything on it, I sprayed it down with cold-zinc and then
over painted the entire pole with black. The paint over the zinc
prevents zinc migration or 'melting' that leads to rust.

Martin, how long does zinc migration take and what percentage
migrates? I hadn't heard of this before and will googleit, also.

And painting it ensures that it must be repainted annually, too, does
it not?

--
Adults are obsolete children. --Dr. Seuss (Theodore Geisel, 1904-1991)
--