Hello !!! Mr Clean did not get the black stain's off of my white vynal boat seat's. I am going to Wall-Mart to purchas the Attwood Stain Remover product and see if that will work.
If that doesn't work I will go to a boat marine supply store to purchas the Mary Kate / stain remover product If that doesn't work I will be getting back with you for any suggestion's that you might help me with this problem.