This is one option.
Removing paint off concrete wall.
Then put on a dust mask gloves and protective eyewear.
Use the edge of a scraper to remove as much of the paint as possible.
Use a paint scraper to scrape up any thick globs of paint that are sticking up off of the concrete.
Then wipe the wall with a soft cloth to remove any loose paint or dirt before starting.
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.
Removing old paint off basement walls is a time consuming effort.
Dunk a stiff bristle brush into the water bucket and scrub the painted surface of the concrete.
Soda blasting is a great way to remove paint from large areas of concrete.
To get oil out of concrete or remove unsightly paint or other stains fill both buckets with hot or warm water and add several squirts of dish soap to one of the buckets.
Now proceed to work the soapy water or tsp into the concrete by means of a long handled brush.
The most common way to remove paint is by scraping it off and the same is true for concrete walls.
Meanwhile sweep or wipe off the concrete removing as much loose dust dirt and debris as possible.
Method 2 to remove paint from concrete with soda blasting.
To remove paint from concrete first sweep the concrete to clean the area you ll be working on.
Sweep the area to clean away dirt and debris.