How to Install a Polished Concrete Floor
2021-6-25 · Step 2: Polish With a Coarse-Grit Grinding Disc. Once the floor has been prepared, it's time to wheel out the grinder. Start with a coarse-grit (40- or 50-grit) grinding disc depending on the hardiness of the concrete you're grinding. Move the concrete grinder in a circular motion, starting on one side of the room and slowly moving to the ...
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