If it comes out OK I'd experiment with putting clear over it to protect. Experiment on a scrap piece of metal or something to make sure the clear doesn't react with the fake chrome paint. I've seen this paint look halfway decent when used on bumpers, but it doesn't seem to be very durable and soon gets all nasty. It never seems to dry completely or something and you can put your fingernail right into it even weeks/months later. Usually it just turns a dull grey color (which just might be what you have on there now).