PVC offers low-temperature properties for vehicle charging cables


A new jacket compound that exhibits a low-temperature brittleness value of <-60ºC is the latest addition to a suite of Flexalloy PVC elastomer products for jacketing and insulation of electric vehicle (EV) charger cables from Teknor Apex (Pawtucket, RI). The newest product, Flexalloy 9612-75, is a 75 Shore A jacket compound that complies with the -40 ºC Cold Impact test requirement specified in CSA standards. It exhibits tensile strength of 2,645 psi (18.2 MPa) and elongation of 390%, and it complies with the UL-62 oil resistance requirement.

"All of the Flexalloy compounds for EV charger cable are abrasion resistant, resilient, and tough even at very low temperatures, yet cost-effective for large-volume production," says Michael Roberts, wire and cable industry manager. "The durability and elasticity of Flexalloy PVC elastomers make them high-performance alternatives to standard PVC compounds while being less expensive than premium materials like thermoplastic polyurethane."

Since introducing its first Flexalloy compound for EV charger cables in 2012, Teknor Apex has continued to expand its portfolio of products for this application (see table). Besides the new Flexalloy 9612-75 compound, others in this family of materials include:
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