I need some advice please; champagne was spilt under our 'protective placemat and tray' and has left a coarse feeling water mark on the marble. Unfortunately marble cleaners are doing nothing and I'm scared to try any buffing methods.
Answer:
This will need to be cut back and re polished as the acid from the champagne has etched the finish!
Sorry to say that it will need to be professionally honed and polished. Get the marble people to come buff it out for you.'don't try and do it yourself.
Afterwards We would also recommend
brillux.