Re: DIY: Black Oxide Coating on bolts & washers for a cleaner look I use TUF-KOTE Converust RC 800 "Rust Converter", available on Amazon (Rs 1290/- per litre when I last bought it). Single liquid, dip and remove immediately, or brush on. Hang out to dry overnight. Only loose flaky rust has to be removed. And you get a glossy black finish.
Generally it is so thick that some dilution with water is advised.
I use it on automobile parts, outside gates, even barbed wire on top of boundary walls (the last is almost impossible to paint) etc. Even rusty car body panels, I coat with this (phosphoric acid, basically), and repaint with spray cans from... Amazon, again ! |