How to get grease out of granite floors
Hi, I was wondering if anyone has ever successfully removed grease from a granite floor, and I'm talking a lot of grease. The granite is black when it's supposed to be grayish. I did a test at this place that has 17 stories with granite floors and the building is about a year old and when they installed the floors they put a sealer called bullet proof or something like that which was suposed to protect the floor since granite is so porous however it didn't work and now you can see exactly where the people walk. They would rather not have to rip it out and restart, understandably, and have tried just about ever to clean it. (they ever heated the floor with a blowtorch) I went with my partner last week and we striped it and then tried cleaning it with enzymes and a type out grout cleaner degreaser with a machine that shoots out 1200 lbs of pressure with no luck. It got a bit out but still looks horrible. So if anyone has ever been able to do something similar please let me know how you did it and what you used. Thank you very much.