At first glance, you may think that a polished concrete floors appear to be wet because of their high-gloss finish, but this is usually not the case. Other hard floor surfaces, on the other hand, options such as vinyl, linoleum, marble, or ceramic floors can all become slippery when wet. Applying a high-gloss sealer to your concrete can actually protect and enhance the surface of your floors as well as reduce slips on the floor.