If you’re like most painters, you probably have a few brushes that are just a little too dirty to be used again. Acrylic paint is notoriously difficult to clean, but there are a few tricks that will make the process a lot easier. The first step is to get rid of any excess paint. If the brush is dirty, wet it down and scrub it with a stiff brush. Be sure to get into all the nooks and crannies. Once the paint is off, rinse it off with water. Next, mix equal parts vinegar and water in a spray bottle. Mist the bristles of the brush with the vinegar solution and let it sit for about five minutes. Rinse off the brush with water and dry it off completely before using it again. ..