Handbook  of  Cable & Wire  Producer

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Polypropylene (PP)

Plastic Type Thermoplastic
Melting Point Copolymer:135-160 0C

Homopolymer: 160-165 0C

Density 0,905 g/cm3
Tensile Strength  0,95-1,3 N/mm2
Max. Use Temperature 1050C
Dielectric constant 2,2-2,6 @1MHz
Resistance (ohm/cm) 1016-1018

Polypropylene was first discovered in 1951 yet commercial mass production begun in late 1950's. It is one of the most versatile thermoplastics commercially available. It has good chemical and fatique resistance.  It also has less density and better temprature resistance  compare to HDPE. On the other hand,  Oxidative degradation is accelerated by contact with copper. Polypropylene is used for coaxial cables, core insulation of control and data transmission cables, power cables, etc.