I've been using EvapoRust to clean up some rust, and I noticed it leaves a black coating afterward. This got me wondering—does that coating actually provide any sort of rust protection? I know that cold bluing doesn't offer much in the way of protection, so I'm curious if EvapoRust does any better or if I'm just left with a surface that's prone to rusting again.
3 Answers
Nope, EvapoRust doesn't provide any rust protection. The black coating it leaves is basically just carbon powder, which means your surface will rust quickly once it's exposed. It's really essential to rinse, dry, and apply some protection right after using it.
While EvapoRust itself doesn't offer lasting protection, the black oxide left on the surface can actually hold oil pretty well. If you apply a good rust inhibitor oil or grease afterward, you'll have a better chance of preventing rust.
I agree, most rust removers like EvapoRust leave a surface that’s just waiting to rust again, so getting a protective coating on fast is crucial. Some folks recommend treating it with a wire brush or other methods before you paint. But hey, there are also DIY rust removers if you're up for experimenting!