[short] Insulation Okolene® is Okonite's trade name for its low loss polyethylene insulation. The two solid bare copper conductors are insulated with Okolene and twisted together to form a balanced pair. A belt of Okolene is then extruded over the twisted pair and into the interstices. Shield and Jacket A polyester tape, 5 mil flat copper tape and a 5/64€� black Okolene jacket is applied over the belted core to complete the construction a twin coaxial cable configuration. Specifications Conductors: Solid uncoated copper per ASTM B-3. Insulation: The dielectric meets or exceeds electrical and physical requirements of ASTM D-1248-84, Type I, Class A, Category 5, Grade #5. Jacket: Meets or exceeds requirements of ASTM D-1248-84, Class C, Type I, Grade J3 and AREMA Signal Manual Part 10.3.21. Product Features Mechanically rugged. Resistant to aging. Easy to install and maintain. Resistant to environmental hazards. Superior moisture resistance. Outstanding termite protection. Excellent electrical properties...high dielectric strength, low capacity (SIC) and power factor and high insulation resistance. Pull Cord feature affords easy and quick accessibility to conductors for splicing and terminations. PCF is safety oriented. [/short]