300 year old Limestone flags. These were shalling and breaking up. we had to stabilise them, clean them and stop one or two from rocking. These go into 3 other rooms. The owners wanted traditional methods used, so we oiled them (linseed/stone oil) twice to create a strong mechanical finish and then beeswaxed them twice. Lots and lots of hands and knees work!! We loved this job! - UK Tiling Forum | Tiling Advice | TilersForums.com