Traditions Artist Acrylic Extender & Blending Medium 8oz is from Deco Art. A medium for extending the open or working time of the Traditions paints and mediums. This medium is added to slow the drying of the paint. It can also be safely added to the other mediums in the line. It also allows the acrylic artist to perform oil techniques. This medium has no solids in it so when the paint or medium is dry, there will be nothing added. Non-toxic, cleans up with mild soap. Item # DATM02-9.