Industrial Electric Wire And Cable Inc., distributor of electrical and electronic wire and cable products. Standard PVC is the 1000 volt or less plastic for hook-up, computer and control wires. Semi-Rigid PVC is much tougher than standard vinyl. It has greater resistance to abrasion and cut-through and more stable electrical properties. Irradiated PVC has improved resistance to abrasion, cut-through, soldering and solvents.
Irradiation changes the vinyl from a thermoplastic to a thermosetting material.
Depending upon the formulation the rated temperature will vary from -55 C to 105 C. Typical dielectric constant values can vary from 2.7 to 6.5. Low dielectric constant, a stable dielectric constant over all frequencies and a very high insulation resistance. In terms to flexibility, polyethylene can be stiff to very hard, depending on molecular weight and density - low density being the most flexible, with high density, high molecular weight formulations being very hard. Moisture resistance is excellent, but both types are flammable. Brown and Black formulations have excellent weather resistance.