How To Clean Paint Off Concrete Walls

Sweep the area to clean away dirt and debris.

How to clean paint off concrete walls.

To remove paint from concrete first sweep the concrete to clean the area you ll be working on. Peel the membrane if you used one and scrape off the paint using a paint scraper. When you set out to remove paint from concrete the first thing to do is clean the surface of the concrete thoroughly. 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.

If paint comes off on the rag the old paint is latex. How to remove paint from concrete without chemicals. Clean a small area of the wall with warm water and detergent. Use the edge of a scraper to remove as much of the paint as possible.

This information is needed to decide what kind of paint stripper to apply. Rather than just scrape the paint with a putty knife to remove the loose paint before i applied. To clean walls that are painted with flat paint mix a few drops of dish detergent with a half gallon of water. The most common way to remove paint is by scraping it off and the same is true for concrete walls.

In my garage i had painted walls that were pealing in areas. Rub that sponge vertically down the wall working one section at a time. Then use mild soap and water solution to scrub away any remaining soil. Then put on a dust mask gloves and protective eyewear.

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. Prepare a solution of soap and water or better yet diluted trisodium. Collect the paint residue and put it in contractor bags for disposal. Paint stains on concrete completely disappear using this method leaving you with a clean surface for repainting if necessary.

Scrub mortar joints and stubborn paint patches with a wire brush. Dip a rag in alcohol and rub over the area. Clean the concrete surface and allow it to dry. 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.

Then wipe the wall with a soft cloth to remove any loose paint or dirt before starting. If no paint or a very little amount comes off on the rag then it is oil based paint. Soda blasting is also an environmentally friendly way to remove paint from concrete and causes no damage to the underlying concrete. Spread a thick layer of paint stripper over the paint with a cheap paintbrush.

Use a paint scraper to scrape up any thick globs of paint that are sticking up off of the concrete. Dry the area with a towel. Dip a sponge in the water and wring it out completely to avoid leaving streaks.