On Wed, 22 Dec 2004 21:44:05 -0800, Joshua Putnam
wrote:

In article ,
says...

I've heard of silver solder in a paste but not brass. Was this a *home
made* concoction, if so do you recall what was used for the paste flux
(all I know of is the powdered stuff) ?

I use a blue paste flux with brass, made by GasFlux. It's around $10 for
a 1-lb tub, I get mine from www.henryjames.com.
Furnace brazing is generally done with a paste of bronze (spelter) and
flux. It is "buttered" on the joint, the joint is assembled, and the
part is "baked".