Hello, I have at present 120 mtrs of natural stone flooring inside a bit house thats just been built and I have the job of cleaning the floor. I am using a product from libron who also make wooden flooring seals, they both are of the same type but have different colourings. Libron have a very good technical dept so I'd ask them if only to get a clue what you need to do. They are in New Romney in kent