A mural is a great way add some life and character to a space that otherwise couldn't be achieved. But to begin that mural, there are a lot of different steps that must be taken and different variables that have to be taken into consideration. One of the biggest decision making factors is whether the mural will be interior or exterior. That factor helps decide the type of paint, some paint colors, the theme of the mural, the cost, and other major variables.
Because I work at Sherwin-Williams, I can attest to the importance of using the right product on the correct substrate and using the right methods to prepare said substrate. Without a good working foundation, a mural, as well as most everything else, will not be of high quality or stand the test of time. Eric Alan Grohe demonstrated this perfectly while doing his mural for Miller Brewing Co. He used aluminum panels instead of the original walls because the substrate would need to withstand heat, and the aluminum panel would work better.
In the case of the Barnstormers, substrate integrity is not something that they are worried about. They know that the walls of the abandoned places they choose to paint could easily fall over before the mural is even completed. On the other hand, Susan Togut find that the substrate of using wooden panels can greatly improve the safety for children, and the overall quality of the mural because the panels allow people to focus on a specific area, instead of the whole mural.
Mural Painting. (n.d.). Golden Artist Colors. Retrieved January 20, 2014, from http://www.goldenpaints.com/