PP fibrillated filler is a type of cable filler material made from polypropylene. It is used in the cable industry as a filling material to help provide support and strength to the cable structure. The PP fibrillated filler is made by fibrillating or splitting the polypropylene fibers to create a fine and uniform structure. This type of filler is often used in power cables, communication cables, and other types of cables where high strength and durability are required.