Sanding Concrete Close To A Wall

Wash the walls with dishwashing soap and water.

Sanding concrete close to a wall.

Once your mortar is made begin spreading it over a small area. Roll liquid concrete bonding agent over the surface of the wall in fairly straight lines using a short napped. The sandpaper you choose depends on the quality and intensity of sanding you want to do. Do not try to make the wall level.

Once you have everything prepared you will need to mix the mortar. Attach a diamond sanding pad to a hand held grinder. Usually the patched areas are visibly noticeable even if the area gets painted. Normally you d start by using a coarse grit sandpaper that is in the range of 40 60 grit.

Sanding concrete using an orbital sander 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. How to sand concrete walls step 1. After sanding you should apply 2 3 coats of acid wash on the entire surface to hide sandpaper scratch marks from the concrete. After you have prepared the area it s time to choose your sandpaper.

4 thoroughly sand the concrete. The process of mixing mortar is relatively easy and straightforward as long as you have the right recipe. Trowel a 3 8 inch. Remove uneven patched areas of concrete by sanding it with an angle grinder.

How to smooth a concrete wall finish step 1. Press the grinder. Also like sanding a concrete floor it is best to start with an area in a corner or near a wall. A diamond pad is the only type strong enough to cut through.