Ultraflex from Pipe Lining Supply is designed to minimize wrinkling when turning corners in a CIPP lateral lining project. The material stretches and compacts to negotiate these changes in direction. The material is also designed to stretch up to 30 percent. This allows the use of 5-inch material to be installed in a 4-inch pipe that transitions to 6 inches. The material will mold itself to the profile of the pipe regardless of the transition of the original pipe. The material meets all requirements of ASTM F-1216 for inversion and ASTM F-1743 for pull-in-place applications. 888/354-6464; www.pipeliningsupply.com.