Sanding Concrete Close To A Wall
How to sand concrete walls step 1.
Sanding concrete close to a wall. Sand any particularly bad areas of concrete with rough grit sandpaper. Wash the walls with dishwashing soap and water. Roll liquid concrete bonding agent over the surface of the wall in fairly straight lines using a short napped. After sanding you should apply 2 3 coats of acid wash on the entire surface to hide sandpaper scratch marks from the concrete.
Usually the patched areas are visibly noticeable even if the area gets painted. Remove uneven patched areas of concrete by sanding it with an angle grinder. A diamond pad is the only type strong enough to cut through. The process of mixing mortar is relatively easy and straightforward as long as you have the right recipe.
4 thoroughly sand the concrete. 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. Press the grinder. The sandpaper you choose depends on the quality and intensity of sanding you want to do.
Once your mortar is made begin spreading it over a small area. Also like sanding a concrete floor it is best to start with an area in a corner or near a wall. Attach a diamond sanding pad to a hand held grinder. Normally you d start by using a coarse grit sandpaper that is in the range of 40 60 grit.
Once you have everything prepared you will need to mix the mortar. How to smooth a concrete wall finish step 1. Do not try to make the wall level. Remove the soap residue by rinsing the walls with a sponge and.