In general, when murals use acrylic water-based paints, they are odorless. The paint dries very quickly and forms a thin protective film, which can then be wiped clean with a damp cloth. Colours are also well retained, which can be important in brightly lit rooms. Oil paints can be used, but behave a little differently. They take much longer to dry than acrylic, have a smell, and shine in a way that not everyone likes. More effort is also required during cleanup. But oil paints also have advantages. Oil paints are softer and more flexible compared with acrylics, which is useful in areas which are not flat and smooth. They also have more saturated colors.