This is one option.
How to remove paint on concrete wall.
However there are some things to consider when painting a concrete wall.
You must choose the appropriate type of concrete paint determine if the wall is sealed from moisture and apply primer prior to painting the wall.
Then put on a dust mask gloves and protective eyewear.
To remove paint from concrete first sweep the concrete to clean the area you ll be working on.
Remove loose paint with a scraper wire brush and cleaning solution.
Sweep the area to clean away dirt and debris.
When you set out to remove paint from concrete the first thing to do is clean the surface of the concrete thoroughly.
The most common way to remove paint is by scraping it off and the same is true for concrete walls.
Removing old paint off basement walls is a time consuming effort.
Paint stains on concrete completely disappear using this method leaving you with a clean surface for repainting if necessary soda blasting is also an environmentally friendly way to remove paint from concrete and causes no damage to the underlying concrete.
Dunk a stiff bristle brush into the water bucket and scrub the painted surface of the concrete.
Clean the concrete surface thoroughly and let dry.
Use a paint scraper to scrape up any thick globs of paint that are sticking up off of the concrete.
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.
Soda blasting is a great way to remove paint from large areas of concrete.
Use the edge of a scraper to remove as much of the paint as possible.
Before moving on to the next step remove or cover any furniture near the wall.
Then wipe the wall with a soft cloth to remove any loose paint or dirt before starting.
Method 2 to remove paint from concrete with soda blasting.
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.
Painting a concrete wall can spruce up an area or make it blend in with the rest of the area s décor.