Sanding Concrete Close To A Wall

Usually the patched areas are visibly noticeable even if the area gets painted.

Sanding concrete close to a wall.

Remove the soap residue by rinsing the walls with a sponge and. After you have prepared the area it s time to choose your sandpaper. Trowel a 3 8 inch. How to sand concrete walls step 1.

Normally you d start by using a coarse grit sandpaper that is in the range of 40 60 grit. Remove uneven patched areas of concrete by sanding it with an angle grinder. After sanding you should apply 2 3 coats of acid wash on the entire surface to hide sandpaper scratch marks from the concrete. How to smooth a concrete wall finish step 1.

Press the grinder. Roll liquid concrete bonding agent over the surface of the wall in fairly straight lines using a short napped. 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.

The sandpaper you choose depends on the quality and intensity of sanding you want to do. Attach a diamond sanding pad to a hand held grinder. 4 thoroughly sand the concrete. Once your mortar is made begin spreading it over a small area.

Sand any particularly bad areas of concrete with rough grit 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. Do not try to make the wall level. Once you have everything prepared you will need to mix the mortar.