Canvas allows the artist to work on a continuous surface without seams in extremely large formats. Thus, acrylic on canvas is one of the most preferred forms when developing fine art paintings to be exhibited in galleries. To thin acrylics to a sprayable consistency and still have good adhesion to a gessoed surface, do not use only water. You may want to add acrylic flow improver or utilize acrylic thinning agents to reduce paint consistency to your satisfaction. The smaller the tip, the more difficult it is to spray acrylics.
Acrylic paint has a tendency to dry on the tip of the airbrush, resulting in clogging.
To clean the tip, have on hand a stiff, flat bristle brush and airbrush cleaner. Dab the airbrush tip periodically with cleaner to remove any buildup of paint in the air cap. Thus, they can quickly remove and clean the needle whenever it appears that a clog is developing. When it starts to flatten, you know that paint is accumulating at the tip. Slowly build up the paint on a gessoed surface.