OPEN SLOW-DRYING ACRYLICS are a true departure from all other acrylics on the market. The increased working time of these colors allows artists to explore traditional techniques such as softening, shading, glazing and blending. Because OPEN Acrylics dry slowly, painters who cover their palettes or use sealed containers have been able to use the same colors for weeks, reducing the amount of paint wasted and preserving color mixtures between painting sessions. The slow-drying properties of OPEN also make them a great option for some printmaking techniques including monoprinting and screen printing. OPEN Acrylic colors and mediums can be mixed with regular fast-drying acrylics for increased control of working time.