Sanding Down Concrete Wall

How to sand down patching cement from foundation walls step 1.

Sanding down concrete wall.

Sanding walls of any type requires a machine that is both powerful and fast. Fill any holes or dents with a good patching slurry. 4 thoroughly sand the concrete. How to sand concrete walls step 1.

The grinder will only work on fully. Spritz the old concrete with a little water to make it damp before applying the cement paint. After you have prepared the area it s time to choose your sandpaper. The angle grinder is loud and it will produce a lot of dust.

Press the grinder. Put on all safety gear. Instructions thoroughly wipe down the surface to ensure there are no debris that could leave pits. Give the wall about 15 minutes of dwell time then test the texture with a fingertip.

If aiming for a specific type of finish measure and mark the necessary depth on the surface s edge 1 16 1 8 or 1 4. Using the coarsest grade. A diamond pad is the only type strong enough to cut through. If concrete is applied to a wall incorrectly the first time it can feel rough or uneven.

If dealing with a large space it is crucial to work in sections particularly when sanding by. Sanding the wall can often take care of the problem but it is difficult to sand a very large surface smooth and you might end up with places that are recessed while others are higher making the wall look worse than before. Powerful to easily get rid of the old rough paint and fast so you can achieve a high quality smooth finish. Cleaning and leveling along the way.

Normally you d start by using a coarse grit sandpaper that is in the range of 40 60 grit. 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. When the texture is soft enough for you to rub it off all the way down to the drywall beneath it s time to.

It s important to immediately cover the wet cement paint with the stucco mix. Remove the soap residue by rinsing the walls with a sponge and. Make sure the patched area is dry before attempting the grinding process.