Andy Dingley wrote:
On 1 Jan 2006 17:08:15 -0800, "flyfisher" wrote:


For info on this process try
http://users.moscow.com/oiseming/rustdemo/rustdemo.htm.


"The tin in brass will etch out of the surface"

" Passivate the surface [afterwards]"

"The yellow is caused by the presence of chromate. Hexavalent chromium
is poisonous. "

Yeah, that's a credible source 8-(

I would suggest the Russians know a bit about rust.
Have you seen recent pictures of what was once the Soviet Navy?