I seem to recall reading that this is not a safe thing to be doing. I'll try and find out where I read it. Something about the dye affecting the strength of the seatbelt.
Be careful.
Would that be the same "Superior" company that made rims as well?
My first car, a '69 Sport Satellite came with a set of Superior chrome rims with wire covers.. The wire basket bolted to the center of the chrome rim.