Once the stripper has been applied successfully, more cleaner solution is applied and swept with a clean mop to get rid of the dissolved wax. If damages such as stains and etchings were superficial, then it may have been removed with the stripper. If not, the damage is on the marble itself and further steps need to take place. If it is a stain, professionals will identify what type of substance caused the stain and match it with the correspondent poultice. A poultice is simply a mixture of substances such as hydrogen peroxide and baking soda that is used to remove stains. For scratches, a sponge with baking soda is gently but consistently buffed in the affected area until the scratches disappear. If the scratch marks are even deeper, they may have to use polishing powder with an electronic grinder to grind and buff the area until the scratches are gone. When they get to actually polishing the marble, professionals will wet the floor thoroughly with a hose and use an electric grinder with diamond grit disks. Sometimes, companies will choose to weigh the machine down and apply more pressure and pass over the terrazzo in rows about five times at about thirty grit.