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wrote:
I'm currently using pieces of tin can for
a project and am trying to create a rust patina
on the surfaces.
I've tried muriatic acid (which was effective in
stripping the shiny plating on the metal), followed by
a clorox/vinegar bath (which blackened the metal),
but have been unsuccessful in inducing a deep brown rusty
coating.
Any suggestions would be greatly appreciated!

- Z

You are washing the metal with another acid instead of neutralizing it
with a basic solution. Try soda [sodium bicarbonate], soda ash [sodium
carbonate] or lye, [sodium hudroxide],rinse with clean water. then
leave it in a moist area for a few days. You should get a great rust
bloom.
Bugs