Can you paint Hammerite over rust?
Yes, Hammerite is designed to be used straight onto rust. You should prep the surface first by removing any loose rust. You can do this with either sandpaper or a wire brush. In my test, I found that Hammerite adhered well to the rusty metal and provided an excellent finish, even over really nasty rust.The Hammerite over rust test
I always like to test things here before giving you guys the answer. So I set about looking around the workshop for the rustiest piece of metal I could find. I certainly managed to find a good test sample, this should really put the Hammerite through its paces.
Rusty piece of metal to be painted

Painted With Hammerite
Part of our Hammerite Series
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