Sanding Paint Off Concrete Wall
Be cautious when using course grit sandpaper because it can seriously damage the underlying surface and create large score marks in the softer materials such as wood if you end up using the sander exercise caution follow the product instructions and wear protective gear.
Sanding paint off concrete wall. Attach a diamond sanding pad to a hand held grinder. In this video i use an angle grinder with a diamond wheel and dust collection to remove old floor paint from a concrete porch. A diamond pad is the only type strong enough to cut through. If you applied a membrane much of the paint will come off when you remove it but you ll still have to scrape and scrub.
Sand off any splatter residue lumps or uneven areas on the concrete floor. If paint comes off on the rag the old paint is latex. Peel the membrane if you used one and scrape off the paint using a paint scraper. After the first pass go over the floor with a fine or superfine sandpaper disc to finish the surface.
Scrub mortar joints and stubborn paint patches with a wire brush. Scrape peeled or chipped areas and apply paint stripper. Scuff sanding is also the first step in preparing newly cured concrete for painting. Wash the walls with dishwashing soap and water.
Use a degreasing cleaner and a scrub brush with water to remove any dirt and grease from the concrete floor. Press the grinder. Remove the soap residue by rinsing the walls with a sponge and. When you set out to remove paint from concrete the first.
Collect the paint residue and put it in contractor bags for disposal. The best concrete paint results come from careful preparation and concrete repair followed by application. How to remove paint from concrete step 1. Clean the concrete surface thoroughly and let dry.
Clean the area of dust with a broom and dustpan after finishing. Then wipe the wall with a soft cloth to remove any loose paint or dirt before starting. Dip a rag in alcohol and rub over the area. Clean a small area of the wall with warm water and detergent.
How to sand concrete walls step 1. Dry the area with a towel. Examine the concrete floor to ensure you have removed any paints stains or other coatings. Coarse sandpaper would also be useful if you wanted to take the paint off only a doorframe or trim and leave the walls covered.
Repeat sanding as necessary until the sanding is complete. Scuff sanding not only helps remove the old product but it gives the concrete surface a slightly rough texture. If some of the paint has already begun to chip or peel.