Designed with a memory-free hinge that adjusts to any angle on inside and outside corners, Pro-Flex300 from ClarkDietrich is a muddable, PVC-free, flexible corner bead with a reinforced paper backing. According to the manufacturer, the product installs with less compound than standard corner beads do; because the paper surface is pretreated to accept paint, finishing compound is not required over the laminated area. The 3-inch corner bead is packaged in 100-foot rolls. clarkdietrich.com
