The Best Cleaner for Soap ScumWhen cleaning soap scum from a porcelain bathtub, I sprayed 409 and then went over it lightly with Scotch-Brite stainless steel scrubbing pads. Not sure how long the scum was there from previous owner, but it came off and didn't harm the finish on bathtub.
Mr. Clean Magic Erasers ReviewsMr. Clean Magic Erasers Reviews. I have used a Mr. Clean Magic Sponge on everything. It takes out dirt, nail polish, marker, crayon, grease, scuff marks, even sticky stuff.