UDS acrylic provides dimensional and color stability with an exceptionally smooth surface for easy finishing and patient comfort. The self cure UDS acrylic matches all heat cure shades and is perfect for relines and repairs. The unique polymer has the low flow characteristics needed for repair resin, yet flows just enough to make it easy for relines. Available in 1, 5, &amp; 22 lbs. in the following shades: Original, Light Pink, Meharry, and Clear.