Features and Benefits:•Works with airless, hot-air, and nitrogen plastic welders.•Wide profile allows for more surface area fusing and greater repair strength.We found the stickiest PP resin on the market and extrude it into a flat ribbon profile that's 3/4" (19mm) wide by 1/16" (1.6mm) thick. This strip comes conveniently packaged by the pound in 1 foot (30.5 cm) strips. There are approximately 63 feet per pound. Use this rod with a hot air welder for welding up bumper covers made from PP blends (TPO, TEO, PP/EPMD, etc.) This rod is pigmented BLACK to make more "invisible" repairs to bumper covers and other black polypropylene parts.