Sennelier Abstract Acrylic Binder Medium is a glossy and transparent product that is soluble in water and irreversible once dry.Creates a satin to glossy finish depending on the percentage of acrylic resin used. Increases the water-resistancy of acrylic paint. Can be used direct to size and seal surfaces prior to painting or over collages and decoupage for sealed and uniform finish.Add glycerine to slow drying time if desired.Abstract is notable for it's innovative and flexible packaging that fits comfortably in the hand is highly portable and strong (so much so that it can even handle the pressure of being stepped on ) - plus the paint is better preserved because air cannot get inside the pouch. There is no waste no air bubbles and it can be easily squeezed down to the last drop.120ml / 4fl. oz.