Sanding Down Concrete Wall

Make sure the patched area is dry before attempting the grinding process.

Sanding down concrete wall.

How to sand concrete walls step 1. Spritz the old concrete with a little water to make it damp before applying the cement paint. To prevent the inhalation. The angle grinder is loud and it will produce a lot of dust.

Attach a diamond sanding pad to a hand held grinder. It s important to immediately cover the wet cement paint with the stucco mix. The grinder will only work on fully. 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.

The sandpaper you choose depends on the quality and intensity of sanding you want to do. Sanding walls of any type requires a machine that is both powerful and fast. 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. After you have prepared the area it s time to choose your sandpaper.

Press the grinder. Powerful to easily get rid of the old rough paint and fast so you can achieve a high quality smooth finish. Normally you d start by using a coarse grit sandpaper that is in the range of 40 60 grit. Instructions thoroughly wipe down the surface to ensure there are no debris that could leave pits.

Cleaning and leveling along the way. When the texture is soft enough for you to rub it off all the way down to the drywall beneath it s time to. Using the coarsest grade. 4 thoroughly sand the concrete.

Remove the soap residue by rinsing the walls with a sponge and. If concrete is applied to a wall incorrectly the first time it can feel rough or uneven. How to sand down patching cement from foundation walls step 1. A diamond pad is the only type strong enough to cut through.

If dealing with a large space it is crucial to work in sections particularly when sanding by. Fill any holes or dents with a good patching slurry. Wash the walls with dishwashing soap and water.