contingent. 1  dependent for existence, occurrence, character, etc., on something not yet certain; conditional (often followed by on or upon): Our plans are contingent on the weather. 2  liable to happen or not; uncertain; possible: They had to plan for contingent expenses.
Get a brush. Face masks are best applied with a soft-bristle brush, such as a paintbrush (normally used for art making) or a tint brush (normally used to apply hair dye). Invest in a brush that you will use for this purpose, and be sure to clean it when you are done.
Apply a final coat using the pure, undiluted gesso. Using a 3 inch decorators brush, apply the gesso directly to the stretched canvas in even strokes. Work from the top to the bottom of the canvas, in parallel strokes from one edge to the other. Wash your brush out immediately in running water then use a brush cleaner to thoroughly remove the gesso out.