Do note that reapplication of paint strippers may be necessary to completely remove paint on concrete.
Remove paint from concrete block wall.
Rust oleum paint stripper for concrete is designed to remove paint and stains from concrete prior to applying a new coating.
Basement walls present a challenge because the cement walls are porous and this makes paint removal difficult.
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.
You could use this however it is better used on a larger surface since the application has a few steps.
In many places it s possible to pull off large strips of the paint white stuff right off the wall where it has bubbled away from the block.
On top of that coating 2 layers of latex paint different colors.
This is one option.
The temptation is to scrape all the loose paint off and then repaint the walls.
Then wipe the wall with a soft cloth to remove any loose paint or dirt before starting.
The procedure for stripping cinder block and masonry walls is virtually the same as that for stripping paint from any material at the beginning of the job but because cinder block is so porous the end of the job the part where you remove the paint residue can be difficult.
The most common way to remove paint is by scraping it off and the same is true for concrete walls.
When you set out to remove paint from concrete the first thing to do is clean the surface of the concrete thoroughly.
Removing old paint off basement walls is a time consuming effort.
Clean the concrete surface thoroughly and let dry.
A sanding disc is attached to a standard floor buffer instead of a polisher and the paint is remove in the same manner of polishing the floor.
In other places the latex paint comes off with a paint scraper but not nearly as easily.
Sanding may also be used for concrete paint removal but normally only for floors.
Here is another video of removing a paint using an chain paint remover and diamond hole drill.