No worries Suzi. I checked the prosoco site. They have some enhancing sealers and other stuff that might resolve the gray areas. Better to talk to a rep or professional floor person about jumping into that area.I use enhancing sealers on old countertops and once the sealer is in the stone, it's there for good. Whoo... teaching new employees all week. Nice group of newbies, but it seems I've got one that's not just cut out for the job. Gotta give them 2 or 3 trys though before I go with my instinct. Hope everybody has a smooth week.