Polypropylene brings attributes needed for many wire and cable applications, including high service temperature with good mechanical and electrical properties but is considerable harder and stiffer than polyethylene. It also has relatively poor low-temperature flexibility. Polypropylene has properties almost identical to that of polyethylene and is used almost exclusively for thin wall primary insulations. Polypropylene can be rated for -30°C to 80°C. Polypropylene can be foamed for improved electrical properties.
Temperature Rating 80° C / 176° F