Personally I plan on experimenting with Rustoleum's rusty metal primer and a roller. Jax2A
Hey Jax--you only want to use that rusty metal primer on metal that is actually rusted. It contains fish oil and will not be suitable on clean metal. If the oil isn't able to soak into the rusty metal it will wick back up into your finish coat. Use clean metal primer on non-heavily rusted metal. That's what I'm going to use, and I'll roll it on.
I'm planning to roll it on at full strength and add a bit of Penetrol hoping that will help it go on level. I will be sanding the primer anyway and doing at least a couple of coats to get a nice base, so roller marks should be an issue.
