Susan primes the panels with Sherwin Williams Heavy Duty Latex paint. Just imagine that this artwork is intended to enhance the environment and people who will see it. Reply. Thomas says. May 26 2017 at 10:04 am. For indoor murals, Susan has used fourteen 4’ X 8’ panels of MDO plywood, ½’’ thick. For exterior murals, she has used up to twenty-four 4’ X 8’ panels of ¾” MDO. Any type of mural, either indoor or outdoor, is a challenge for a muralist and suggests a great responsibility. Indoor panels are primed with 2 coats on the front side. Love this. Best paint to use for indoor mural by muraldesigns » Sun Mar 30, 2008 7:24 pm Hi I am about to paint a large wall mural in my daughters bedroom any suggestions on the best type of paint to use and any good uk suppliers. Starting a mural project, an artist faces a lot of problems and considerations. My wife is a great artist and definitely going to show her this for some inspiration! When you paint a mural, you'll have two distinct stages of painting, just as when you paint on canvas: first you'll create an underpainting to block in main areas of color and outline the general composition, and then you'll paint in the detail.. To paint large blocks of color (such as a stretch of blue sky, green hills, etc), use interior household paint, also known as latex paint. Doing some painting in my son’s room and murals were something we were considering. On second thought, with Ruth’s tutorial under my belt, I just might attempt to paint a mural on a wall! How to Paint a Mural. A mural is basically a large work of art placed directly on a wall. Painting a mural takes plenty of preparation, equipment, and effort.