How do I clean a stained white grout kitchen floor?
Just pour it on, let it set for a few mins, then wipe it off. It cleaned my grout to a white shine again. Good luck
Try that and see how it works for you. You can always bring out the big-gun cleaners if all else fails. The hydrogen peroxide is a natural bleach so it should do nicely. Test a inconspictuous spot first as with any other cleaner.
Nothing could have been further from the truth. To date, having posted here and pestered every salesman in the business, I have yet to find anything that will do the job of REALLY sealing.