Metal Coating For Rust

[MP63]

I had to grind some metal from some hardware. How do I keeep the exposed metal from corroding?

Is there something simple that can coat it for protection?

Thanks,

Mike

[Sand Paper]

Pittsburgh Pains/PPG makes Direct to Metal (DTM) and Direct to Rust (DTR) industrial coatings, they come in high gloss. You can get them in most colors.