fiberglass or cast iron, or porcelin? Contact this site for additional information: www.integritycoatings.com
I am very serious about this, if you contact a reputable company and a trained refinisher, you will be very happy with todays results. they will do this while the tub is in your home and it will last.
I have a friend in this business and he swears by it. He does use the products offered by this web site and he was trained by these people also.