I used a product called Brasso, works fantastic. I found it at Canadian Tire, $8.00 for a 4 oz. bottle, which I thought was high. I went online (as always) and found a package of two, 8 oz. bottles for $8.00, plus shipping which amounted to one bottle being free as compared to buying it in Canada, one hell of a deal and it will last me years!! Try it works great, but go looking for a deal like I did.