Can You Sand Concrete Floor. You can scuff-sand concrete with a pole sander or a hand sander. But to create the best possible finish you have to sand one last time with a very fine sandpaper.
If the concrete floors are particularly smooth or have been polished you should sand them before staining. At least 1500-grit will work. 14 Votes You can basically sand any type of concrete surfaces regardless of whether it is a countertop a floor a wall or a decorative object.
Laitance is a weak milky accumulation of fine particles of cement dust lime and sand fines on the surface of fresh concrete usually caused by an excess of water bleeding to the surface.
Not only does it limit you to the types of tools that can be used to apply an epoxy coating but it will. Also sanding is essential when it comes to resurfacing a treated concrete floor. The machine is powerful enough to damage the floor if not used carefully. Smooth glossy surfaces will prevent all types of stains even.
