Apply the acid directly from the bottle with a sponge or cloth.
How to remove paint off concrete patio.
When the paint is soft you can pry it of with a hand scraper and wire brush then rinse with fresh water.
It may require a couple of applications to achieve your goal.
Sweep the area to clean away dirt and debris.
Allow it to remain on the paint long enough to dissolve the paint.
After the stripper is set use the scrub brush to scrub it off.
Break up the paint with the wire brush and scrape it away with the scraper.
Use a wire scrub brush or a scraper to remove the loosened paint.
Use the edge of a scraper to remove as much of the paint as possible.
I would recommend using a pressure washer for your final rinse this ensures that the entire chemical is removed.
How long can vary depending on how old and hard the paint is.
The abrasive material forced out under high pressure on the affected spot of concrete surface helps in paint removal.
Use a paintbrush or a paint sprayer to apply the paint stripper.
You will want to apply behr s concrete stain paint stripper to remove as much as you can of the existing material.
It has a vacuum attachment which then cleans up the released beads dusts and debris by suction.
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.
Once most of the paint comes off the concrete wash it thoroughly with a hose to remove any stubborn residue.
Remove old paint from a smaller patio 10 x 10 or so by mixing 1 cup of dishwasher soap and 2 quarts of hot water.
Shot blasters though costly can be used to remove paint stains from concrete.
When you set out to remove paint from concrete the first thing to do is clean the surface of the concrete thoroughly.
You could also use a pressure washer for outdoor concrete surfaces such as driveways or patios.
Pour the solution on a small section of painted concrete and allow it to stand for 10 to 15 minutes.
Clean the concrete surface thoroughly and let dry.
Repeat by sections until all of the old paint is gone.