DANIEL SMITH Ultimate(tm) Acrylics - Powerful colors, Superb Handling and Superior Brushing Properties. You'll love the vibrancy, clarity and superior tinting strength of our acrylics, and the higher pigment concentration also means you'll save money. They contain no fillers or extenders and are highly lightfast. They also have less odor than most competing brands and show little to no color change from wet to dry, a great advantage when you're trying to match colors from a previous painting session. Perhaps most importantly, they handle superbly, with a substantially longer open time and great brushing properties. Get the easy reworkability of acrylic painting without the frustration caused by too-fast drying. DANIEL SMITH Ultimate(tm) Acrylics are completely compatible with other acrylic paints and mediums on the market. Lightfastness Rating: I