Sanding Paint Off Concrete Wall

The most common way to remove paint is by scraping it off and the same is true for concrete walls.

Sanding paint off concrete wall.

Wash the walls with dishwashing soap and water. After the first pass go over the floor with a fine or superfine sandpaper disc to finish the surface. Peel the membrane if you used one and scrape off the paint using a paint scraper. Examine the concrete floor to ensure you have removed any paints stains or other coatings.

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. Before starting lay a cloth on the floor beneath the area you will be working on so that the flaking paint can be easily removed later on. If some of the paint has already begun to chip or peel. Clean a small area of the wall with warm water and detergent.

Hardened residue may require a scraper. A diamond pad is the only type strong enough to cut through. Dip a rag in alcohol and rub over the area. Sand off any splatter residue lumps or uneven areas on the concrete floor.

Scrub mortar joints and stubborn paint patches with a wire brush. Attach a diamond sanding pad to a hand held grinder. Scrape peeled or chipped areas and apply paint stripper. In this video i use an angle grinder with a diamond wheel and dust collection to remove old floor paint from a concrete porch.

If paint comes off on the rag the old paint is latex. The best concrete paint results come from careful preparation and concrete repair followed by application. Coarse sandpaper would also be useful if you wanted to take the paint off only a doorframe or trim and leave the walls covered. How to sand concrete walls step 1.

Press the grinder. Scuff sanding is also the first step in preparing newly cured concrete for painting. When you set out to remove paint from concrete the first. Remove the soap residue by rinsing the walls with a sponge and.

Collect the paint residue and put it in contractor bags for disposal. Clean the concrete surface thoroughly and let dry. Dry the area with a towel. Clean the area of dust with a broom and dustpan after finishing.

Use a degreasing cleaner and a scrub brush with water to remove any dirt and grease from the concrete floor. 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. How to remove paint from concrete step 1.