Removing as much dirt and debris from the surface as possible is critical before painting. This surface preparation will aid in the adhesion of the paint and result in a clean finish. So, the day before you start painting, thoroughly clean the area with a small amount of original dove dish soap, water, and a damp rag. Once the bricks are clean, we need to ensure that the soap residue has been removed by going over the entire surface with a clean rag with warm water. Then leave the brick to dry overnight before applying any paint.