Great for general cleaning or concrete paint prep. To begin prepping to paint my garage floor wit...Great for general cleaning or concrete paint prep. To begin prepping to paint my garage floor with Rustoleum Concrete Paint (gray), I did a test area in my garage while I wait for some items to be removed, so that I could see, and show, results on trouble spots. My garage has no major oil spots but does have general stains, tape gunk, random stickers, paint spots and general dirt build up, so results were somewhat visible. The application instructions are right on the container and easy to follow. Just scrape off surface gunk, apply product for 20 minutes (undiluted), brush scrub, then rinse. I then used a floor squeegee to dry the floor. This product is not designed to clean major oil spots or alter the look of concrete. My garage still looks like raw concrete, but I noticed a substantial difference in the cleanliness of the surface that will obviously make paint adhesion stronger.
by UpgraderGirl2