Use a degreasing cleaner and a scrub brush with water to remove any dirt and grease from the concrete floor.
Sanding paint off concrete wall.
Scrape peeled or chipped areas and apply paint stripper.
Coarse sandpaper would also be useful if you wanted to take the paint off only a doorframe or trim and leave the walls covered.
After the first pass go over the floor with a fine or superfine sandpaper disc to finish the surface.
Scuff sanding is also the first step in preparing newly cured concrete for painting.
Repeat sanding as necessary until the sanding is complete.
If some of the paint has already begun to chip or peel.
Hardened residue may require a scraper.
Remove the soap residue by rinsing the walls with a sponge and.
The most common way to remove paint is by scraping it off and the same is true for concrete walls.
How to sand concrete walls step 1.
If paint comes off on the rag the old paint is latex.
Scrub mortar joints and stubborn paint patches with a wire brush.
In this video i use an angle grinder with a diamond wheel and dust collection to remove old floor paint from a concrete porch.
Scuff sanding not only helps remove the old product but it gives the concrete surface a slightly rough texture.
Clean the concrete surface thoroughly and let dry.
Then wipe the wall with a soft cloth to remove any loose paint or dirt before starting.
Sand off any splatter residue lumps or uneven areas on the concrete floor.
The best concrete paint results come from careful preparation and concrete repair followed by application.
Clean a small area of the wall with warm water and detergent.
Peel the membrane if you used one and scrape off the paint using a paint scraper.
Wash the walls with dishwashing soap and water.
When you set out to remove paint from concrete the first.
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.
Collect the paint residue and put it in contractor bags for disposal.
Dry the area with a towel.
Clean the area of dust with a broom and dustpan after finishing.
Press the grinder.
How to remove paint from concrete step 1.
A diamond pad is the only type strong enough to cut through.
Attach a diamond sanding pad to a hand held grinder.
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.