Is there a clear coat I can spray to protect rust ?!

[Rob_benton]

Strange question I know, but

I have just bought a old rusty/aged looking door bell that I want to look rusty but not rust anymore if left in the garden.
Is there a clear spray that I can spray onto the rust to preserve it ?

The bell is only about 10 inches in overall size.

Thanks for any advice.

[Sim_Simma]

You mean bought?
There's a program called sin city motors that make rat rods, they usually use a shell from a car from the fifties or something, that are all rusty, they spray a satin clear coat on it to protect it but keep the original look. I'd try a rattle can satin clear.

[Xiaxio]

And there I was, coming to make a smart arse remark about protecting rust instead of preventing it. damn! Maybe next time.

[Sim_Simma]

[Z4M-2006]

Rustins metal varnish or ACF 50