• Do not let the slurry dry on the concrete because it will harden in place. If you only have a small area to sand, you can also use a palm sander, orbital sander or belt sander. Rough imperfections may require the use of a special diamond disc and a concrete floor grinder.


  • Sanding Concrete If you have concrete that is going to be exposed architecturally, you can sand it by hand using wet and dry sandpaper or an orbital sander.

    Furthermore, can you smooth concrete after it dries? There are basically two methods used to smooth off hardened concrete surfaces. They are dry grinding and wet rubbing. Dry grinding is done of dry concrete surfaces to remove fins and marks caused by forms. The water, plus the rubbing action, brings up a cement paste which results in a very smooth, plaster-like surface.

    Then, how do you sand a concrete floor by hand?

    How to Scuff Sand Concrete

    1. Mix a few drops of dish detergent into a bucket of warm water.
    2. Hang plastic sheeting over doorways to keep dust from the rest of the house.
    3. Attach 180-grit sandpaper, which is a fine grit, to a pole sander, hand sander or floor sander.
    4. Wash the dust from the floor with another bucket of water with dish detergent.

    How do you hand sand concrete?

    If youve dry-sanded your concrete and still have a cement-cream finish, then the easiest thing to do is to wet sand by hand using 320 to 400 grit silicon-carbide wet/dry sandpaper. Silicon carbide is much harder than concrete, so it abrades the surface easily, but wont remove your cream finish.

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