Clean the concrete surface thoroughly and let dry.
How to remove paint concrete wall.
Scrub mortar joints and stubborn paint patches with a wire brush.
If some of the paint has already begun to chip or peel.
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.
Apply a generous amount of alcohol to a rag and apply it directly to the affected area.
Use the edge of a scraper to remove as much of the paint as possible.
If your project is indoors scrub the wall with soapy water and a scrub brush instead of using a power washer.
Massage the alcohol into the stain to loosen the paint.
Clean a small area of the wall with warm water and detergent.
Sweep the area to clean away dirt and debris.
This scrub action should remove most of the paint as well.
The most common way to remove paint is by scraping it off and the same is true for concrete walls.
Dip a rag in alcohol and rub over the area.
Dry the area with a towel.
Collect the paint residue and put it in contractor bags for disposal.
It is important that the area is free of loose paint oil grease or any foreign substance that may cause discoloration in your final paint job.
Peel the membrane if you used one and scrape off the paint using a paint scraper.
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 there is still some paint leftover from the fist cycle let the concrete dry and repeat the process.
If paint comes off on the rag the old paint is latex.
For exterior projects use a power washer to rid the wall of all dirt and dust.
Use a broom or shop vacuum to remove all dirt or debris.
Then wipe the wall with a soft cloth to remove any loose paint or dirt before starting.
Avoid letting the latex paint cure.
Clear out loose debris from any cracks or holes in the surface and repair with cement or filler such as latex masonry caulk.
When you set out to remove paint from concrete the first.
How to remove paint from concrete step 1.
After the stripper is set use the scrub brush to scrub it off.
2 apply a chemical paint stripper to the concrete surface.
Alcohol is a common household chemical that can be used to remove latex paint from concrete surfaces.
Once most of the paint comes off the concrete wash it thoroughly with a hose to remove any stubborn residue.
If possible remove any loose paint from concrete with a scraper or brush.
Remove loose paint with a scraper wire brush and cleaning solution.
Dip the brush into the soapy solution and scrub the area using circular motions.