Old Holland New Masters Retarder Gel Medium - 500 ml jar

All New Masters gel mediums can be mixed with New Masters Classic Acrylics and other New Masters Mediums. Since New Masters Gel Mediums are based on a proprietary binding system, it is recommended that testing be done before mixing them with other manufacturers’ acrylic paints or mediums. This gel slows the drying time of acrylic paints. It has the same viscosity as the New Masters Classic Acrylics. For best results, add no more than 10% retarder to acrylic paint.