Old Holland New Masters Mediums are the realization of a dream held by Professor Theo de Beer, Old Holland's late owner, to develop a line of acrylic paints and mediums that would be used today by the "New Masters" of art.
Retarder Gel Medium — This medium slows drying time and keeps colors open and clear. It has the same viscosity as that of New Masters Classic Acrylics. For best results, add no more than 10% retarder to the acrylic paint.
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