A terrazzo floor is made up of chips of various porous stones that are poured onto a prepared surface. This type of floor requires special care. Since a terrazzo floor is porous, it can easily be damaged or etched if the wrong products are used on it. When in doubt, consult the company that installed the flooring. A terrazzo floor needs to be sealed to prevent stains, but wax is not the proper sealer to use on this type of flooring. Special sealant is used to seal, shine and protect the floor. You can use the special sealant yourself or have the company that installs the flooring do it.