The liquid mask is a very practical product in airbrushing: It replaces the usual masking by adhesive.
The liquid mask helps you to hide the areas of the drawing or graphics you want to protect. It dries quickly and forms a removable flexible film. Then the paint is sprayed around the mask, and this latter is removed by peeling or rubbing with a gum or a cloth
The liquid mask can be applied using a brush, or even an airbrush.