Simple Sanding A Concrete Countertop

The small sander surface will allow you to have more control over tighter angles or corners of the concrete.

Sanding a concrete countertop. I sanded the concrete countertops using my rotary sander and regular sanding discs from Home Depot. Clean the countertop surface with a mixture of 14 to 12 cup vinegar mixed in a gallon of water. However sanding a concrete floor or countertop the once-over can not only give it a more polished look it can also give it the appearance of much more expensive natural stone materials.

First and foremost you will need the correct sander and sandpaper. The abrasive grains tend to be a bit harder than concrete or a lot harder depending upon the concretes age so sanding will create dust and grit. This dust and grit tends to get trapped under the sanding pad and both the sanding abrasive particles and the concrete grit act on the concrete.

As previously mentioned you will also have to be sure to get diamond-based sandpaper. Granite is uniformly hard. I started with 60-grit and then moved to.

Pour water over the top and edges of the fully-cured concrete countertop. Depending upon the look that you are going for you can work your way up to finer sanding pads up to 1500 grit. For the edges I used regular sandpaper and sanded those by hand.

Sign In Register View Cart. For concrete sanding you need to start with coarse and low grit diamond sanding pads at around 60 grit. Sanding concrete is no different.

Concrete has rough hard aggregate in a relatively soft matrix. The entire slurry process takes between 4-5 days. This slightly acidic mixture helps neutralize the alkalinity of the concrete.