*NEW* Golden OPEN Acrylics give artists more possibilities than ever when using acrylic paint. They have a much longer drying time than regular acrylics, making them more versatile. Thin layers can be applied for faster drying time, or for thicker layers, quick dry mediums can be used for faster dry time. Thick layers will dry very slowly allowing long work time. Finally, Golden OPEN Acrylics can be mixed with other Golden Acrylics, making them truly uniques from other acrylic paints.