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Honestly, I would never think to coat brake discs with anything. I'm surprised that people have them chrome plated, I'd think they'd lose some braking grip since chrome is a rather slick plating.
Looked up Cerakote, "Cerakote is a Polymer-Ceramic coating that can be applied to metals, plastics, polymers and wood. The unique formulation used for Cerakote ceramic coating enhances a number of physical performance properties including abrasion/wear resistance, corrosion resistance, chemical resistance, impact strength, and hardness."
Interesting, if it lasts in this application.
It brakes just fine and I have made a few unwanted panic stops. The high heat ceramic coating is very durable for being only 1 mil .001" thick and appears to have held up well after 6k miles. It's just another option to powder coat and you could elect not to do the pad area as I did. I just took this picture this am.
I wipe my brake disks down after every weekend to get the brake dust off. Keeps corrosion off and I care about that. But I'd be afraid to cerakote them for fear of affecting the brake performance.
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