Sanding Concrete Close To A Wall

Remove the soap residue by rinsing the walls with a sponge and.

Sanding concrete close to a wall.

Once your mortar is made begin spreading it over a small area. 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. 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.

After you have prepared the area it s time to choose your sandpaper. Trowel a 3 8 inch. Remove uneven patched areas of concrete by sanding it with an angle grinder. The process of mixing mortar is relatively easy and straightforward as long as you have the right recipe.

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. Press the grinder. After sanding you should apply 2 3 coats of acid wash on the entire surface to hide sandpaper scratch marks from the concrete.

Attach a diamond sanding pad to a hand held grinder. Once you have everything prepared you will need to mix the mortar. 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.

Usually the patched areas are visibly noticeable even if the area gets painted. How to smooth a concrete wall finish step 1. 4 thoroughly sand the concrete. Wash the walls with dishwashing soap and water.