On Wed, 2 Mar 2011 14:14:35 -0800 (PST), Joe wrote:

On Mar 1, 8:08Â*pm, dilbert firestorm wrote:
is this stuff good?

http://www.krylon.com/products/rust_tough_primer/

or is hammerite better?

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---= -Dilbert Firestorm- =---
Zizzle that Fire - it's Zizzle Time !!!!!!!

The people who make chain link fences and gates use what's called zinc-
rich primer where the welds have burned away the galvanizing. It is
available in spray cans. Check at a real genuine paint store or
industrial supply firm. It can be top coated any color and will
outlast any other non zinc coating. RustOleum is a good second choice.

Joe
There are many zinc rich primers - including zinc epoxy primers
(corlar?)and zinc CHROMATE primer was more commonly used on aluminum
than on steel - and is hard to get and somewhat dangerous to use
because of the (i believe, covalent) chromium.
The "cold galvanize" spray works pretty good but CAN be difficult to
topcoat - needs to be COMPLETELY hardened before top-coating - as many
will lift or wrinkle if shot with a highly volatile (hot) topcoat.