How To Sand Concrete With Angle Grinder. If you’re just taking off the surface, do quick, circular motions until the surface compounds are gone. If you need to do more than a small room hiring a commercial floor grinder will save your back and time.
This process also works well with concrete, especially for. While an angle grinder is not an ideal tool for woodworking, it certainly can be useful when working with masonry and concrete. To turn your angle grinder into a sanding tool, you need to attach the right accessory.
Slow and tedious work, but if it works it works.
Use the material carefully to fill out any pinholes or scratches. Selecting the correct angle grinder for concrete grinding purposes is very important. If you need to do more than a small room hiring a commercial floor grinder will save your back and time. Once the surface area is sufficiently clean, you should run an extension lead for your wet/dry vacuum and angle grinder if it's not a cordless grinder.