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Rugged PVC Elastomer is designed for EV charger cables.

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April 8, 2014 - Intended for jacketing and insulation of electric vehicle (EV) charger cables, Flexalloy® 9612-75 complies with -40°C Cold Impact test requirement specified in CSA standards and offers tensile strength of 2,645 psi and elongation of 390%. This abrasion-resistant, 75 Shore A jacket compound, based on UHMW PVC resin, exhibits low-temperature brittleness value of less than -60°C, complies with UL-62 oil resistance requirement, and can be processed on standard PVC equipment.

Growing Portfolio of Rugged PVC Elastomers for Vehicle Charger Cables Includes New Low-Temperature Jacket Compound

Teknor Apex Co.
505 Central Ave.
Pawtucket, RI, 02861

Press release date: March 31, 2014

PAWTUCKET, RI, U.S.A. – A new jacket compound that exhibits a low-temperature brittleness value of < -60 ºC is the latest addition to a suite of rugged Flexalloy® PVC elastomer products for jacketing and insulation of electric vehicle (EV) charger cables, it was announced today by Teknor Apex Company, which will feature its EV cable portfolio at Wire Düsseldorf (Hall 9, Stand F05-03).

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,” said 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 growing family of materials include:

• Flexalloy 9610-78, an economical general-purpose product that can pass the UL Cold Bend test at -40 ºC. This 78 Shore A material has a brittle point of -38 ºC; tensile strength of 2,625 psi (18.1 MPa); and elongation of 350%. Flexalloy® 9610-78 exhibits a limited oxygen index of 26%.

• Flexalloy 9605-65, a 65 Shore A jacket compound that is even more flexible and is capable of passing the UL Cold Bend test at -60 ºC.

• Flexalloy 89504-90, a 90 Shore A insulation compound, and a more flame retardant version, Flexalloy 89504-90FR.  Flexalloy  89504-90 has a tensile strength value of 2,830 psi (19.5 MPa), elongation of 340%, and brittle point of -46 ºC. It exhibits a limited oxygen index of 27%. Its dielectric constant and dissipation factor at 1 MHz are rated at 3.18 and 0.087.

All of these materials can meet requirements for a maximum continuous operating temperature of 105 ºC.

Unlike standard flexible PVC, Flexalloy compounds are based on ultra high molecular weight PVC resin. They exhibit improved toughness, abrasion resistance, and low temperature properties and provide elastomeric resilience and resistance to compression set. The compounds can be processed on standard PVC equipment.

The VINYL DIVISION of Teknor Apex Company is a leading manufacturer of compounds based on PVC, including ApexÒ flexible and rigid vinyl, FlexalloyÒ vinyl elastomers, and FireguardÒ low-flame, low-smoke compounds for wire and cable.  Headquartered in Pawtucket, Rhode Island, U.S.A., the Division is an international supplier to the appliance, automotive, construction, medical device, wire and cable, and other industries. Parent company Teknor Apex operates manufacturing facilities around the world and sells in 90 countries. Six of the eight Teknor Apex business units focus on plastics compounding, including bioplastics; color concentrates; nylon; thermoplastic elastomers; toll and specialty compounds; and vinyl. Visit

Address all mail inquiries to Teknor Apex, 505 Central Avenue, Pawtucket, RI  02861 U.S.A. Tel: 1-401-725-8000.  Tel. from U.S. only: 1-800-554-9892. Fax: 1-401-729-0166. E-mail:

Robert J. Martino
Martino Communications Inc.
8 Main Street 
P.O. Box 379
Hastings-on-Hudson, NY 10706 U.S.A.
Tel: 1-914-478-0754
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