Buy the same types of paint strippers.
How to remove paint stains from cement floor.
The active ingredient will be listed on the can.
Depending on the paint type it can be either based on oil or water there are dedicated paint removers for it.
When nothing else works contact the paint manufacturers in order to find the best paint stripper to best help remove the paint from the concrete.
Soda blasting is a great way to remove paint from large areas of concrete.
Methylene chloride can be.
How to remove paint stains from concrete while a slight hint of color might always remain if you spill a large amount of paint onto unsealed concrete you can remove most of the mess.
If you re working outdoors or in a detached garage with the door open and want fast results you can use a methylene chloride type stripper.
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.
Remove paint stripper residue.
Method 2 to remove paint from concrete with soda blasting.
Cleaning old paint from concrete is similar to stripping paint from wood.
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.