Use a broom or shop vacuum to remove all dirt or debris.
Remove paint from concrete wall.
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.
Remove loose paint with a scraper wire brush and cleaning solution.
Then wipe the wall with a soft cloth to remove any loose paint or dirt before starting.
Collect the paint residue and put it in contractor bags for disposal.
Soda blasting is also an environmentally friendly way to remove paint from concrete and causes no damage to the underlying concrete.
Clean a small area of the wall with warm water and detergent.
Before moving on to the next step remove or cover any furniture near the wall.
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.
Paint stains on concrete completely disappear using this method leaving you with a clean surface for repainting if necessary.
Sweep the area to clean away dirt and debris.
Dry the area with a towel.
Dip a rag in alcohol and rub over the area.
Use the edge of a scraper to remove as much of the paint as possible.
Here is another video of removing a paint using an chain paint remover and diamond hole drill.
Clean the concrete surface thoroughly and let dry.
Both methods create relatively less dust as grinder wire brush.
If paint comes off on the rag the old paint is latex.
Clear out loose debris from any cracks or holes in the surface and repair with cement or filler such as latex masonry caulk.
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.
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.
Peel the membrane if you used one and scrape off the paint using a paint scraper.
Soda blasting is a great way to remove paint from large areas of concrete.