I've used Novus polish and they work very well. I even used it on my headlights. I first heard of it from a website that partially caters to people that refurbish those old antique radio's from the 1920's. They say you can return those old clear radio dial faces to like new with it. In the kit there's one heavy scratch remover, one fine scratch remover, and one spray cleaner/conditioner similar to Plexus.