Sanding Concrete Close To A Wall

How to sand concrete walls step 1.

Sanding concrete close to a wall.

Attach a diamond sanding pad to a hand held grinder. After sanding you should apply 2 3 coats of acid wash on the entire surface to hide sandpaper scratch marks from the concrete. Once your mortar is made begin spreading it over a small area. Do not try to make the wall level.

Press the grinder. The sandpaper you choose depends on the quality and intensity of sanding you want to do. Remove the soap residue by rinsing the walls with a sponge and. Once you have everything prepared you will need to mix the mortar.

Remove uneven patched areas of concrete by sanding it with an angle grinder. After you have prepared the area it s time to choose your sandpaper. 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. The process of mixing mortar is relatively easy and straightforward as long as you have the right recipe.

Patches of cement are often uneven and stand out from the rest of foundational walls especially if cracks in the original walls necessitated the repair. Also like sanding a concrete floor it is best to start with an area in a corner or near a wall. How to smooth a concrete wall finish step 1. Sand any particularly bad areas of concrete with rough grit sandpaper.

A diamond pad is the only type strong enough to cut through. Usually the patched areas are visibly noticeable even if the area gets painted. Trowel a 3 8 inch. Roll liquid concrete bonding agent over the surface of the wall in fairly straight lines using a short napped.