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.
Remove old paint from concrete wall.
Method 2 to remove paint from concrete with soda blasting.
It is water based 100 percent biodegradeable zero voc and powerful enough to remove eight to 10 layers of paint at.
To remove paint from concrete first sweep the concrete to clean the area you ll be working on.
For this stage of the job so long as you re working on a compact concrete patch you can probably get by with a wire scrub brush or a paint scraper.
Dip a rag in alcohol and rub over the area.
Remove peeling paint from walls with paint stripper.
If paint comes off on the rag the old paint is latex.
If you decide to remove peeling paint from your walls with paint stripper a good choice is dumond smart strip advanced paint remover.
This information is needed to decide what kind of paint stripper to apply.
If you don t have concerns about damaging your walls or concrete floor old paint can be powered off with a pressure washer or sand blaster.
You ll probably ultimately have to use a power washer but since most of the paint is gone you won t have to.
Step 1 decide what method you ll use.
Soda blasting is a great way to remove paint from large areas of concrete.
Use a paint scraper to scrape up any thick globs of paint that are sticking up off of the concrete.
Determine if the old paint is oil based or latex.
Then wipe the wall with a soft cloth to remove any loose paint or dirt before starting.
If you don t already own a pressure washer or sand blaster you can rent these from local tool rental stores or your nearest big box home supply store.
Then put on a dust mask gloves and protective eyewear.
Remove paint stripper residue.
For external walls both sandblasting and power washing are tried and tested methods of removing old paint from hard surfaces like concrete.
Carefully follow the directions that.
The most common way to remove paint is by scraping it off and the same is true for concrete walls.
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.
Start early and you should be able to complete a porch in one day.
Seek advice from your rental company before deciding on these methods since both use high pressured water and could cause damage to your wall and yourself if not handled properly.