Zeston PVC Cut & Curled™ Jacketing is available in thicknesses of 20 and 30 mil (0.5 and 0.8 mm). It is available in factory-cut sizes to fit up to 30 inches (762 mm) O.D. All sections of the Zeston PVC Cut & Curled jacketing are 48 inches (1219 mm) in length and are factory curled to the insulation size to fit snugly over longitudinal pipe. Cut & Curled jacketing is available with or without self-sealing lap tape (SSL) on the longitudinal seam. White only Zeston Cut & Curled jacketing contains a UV inhibitor. The 30 mil (0.8mm) thickness is recommended for outdoor applications. Color Cut & Curled jacketing is not recommended for outdoor applications.