Barkeeper's Friend (cleanser) you can buy at WalMart
By
02/25/2010
They make a product that refinishes tubs, should buffing out not work you might try that. They sell it at home depot and Lowes but I would take myself down to a local hardware store and see what they tell you to do. I have also heard that taking enamel paint and carefully painting the scratch little by little will cover it and make it invisible. But I would ask at the local hardware store, and look at the tub repainting stuff.
By
02/22/2010
Get some bartender's friend and gently use it to buff out the porcelain and hope it works.