So how permanent is this process? Is it electronicly bonded kinda like electro static paint? I know, or at least I think I know, cuz I saw on "how it's made"

lol they dipped some plastic fenders in, so on metal its the same process?
How does it come off or what not. Does it tend to flake or peel off like a sticker after you initially scratch or gouge it? Or will it be completely bonded and have to wear off or sand
Thanks, Ian