New Teknor Apex and Flexalloy PVC Compounds Comply with Flame Test Requirements for Cable Trays

Press Release Summary:

Teknor Apex’s new PVC jacket compounds meet UL-1277 and UL-13 flame test requirements for electrical power/control tray cables and power-limited circuit cables, respectively. The Apex® brand options include 70018 for use over polyethylene, 70020 for outdoor-rated jackets over crosslinked polyethylene, and P-5007, the most flame-retardant, for use in application wiring and tray cables for polyethylene cores.  The Flexalloy® 9627-79 elastomer was designed as a spatter-, oil-, and UV-resistant material for welding cable and can be used over PVC  or crosslinked polyurethane cores.

Original Press Release:

Four New PVC Compounds Provide Range of Performance Enhancements For Power And Control Tray Cable Jackets

Apex® PVC and Flexalloy® PVC Elastomer Compounds from Teknor Apex Meet UL-13 and UL-1277 Requirements for Power-Limited Circuit Cables and Power and Control Tray Cables

PAWTUCKET, RI, U.S.A., September 10, 2018: Four new PVC jacket compounds meet flame test requirements for power and control tray cables while providing enhanced-performance options for specific applications. Teknor Apex Company will introduce the compounds at IWCS 2018 (Booth 213).

All four compounds pass requirements for UL-1277 (electrical power and control tray cables with optional optical-fiber members) and UL-13 (power-limited circuit cables); meet the CSA FT-4 burn tests with appropriate cores; and have a maximum continuous operating temperature of 105 °C. The compounds are listed below with Shore A durometers given as 15-second Hardness Stand readings:

Apex® 70018 is a 73 Shore A PVC compound that yields soft, low-gloss, highly flame-retarded jacketing for use over polyethylene. The material is capable of achieving UL Oil Resistance I and II ratings, features an oxygen index of 41%, and, with a brittle point of -16 °C, is suited for indoor use.

Apex® 70020 is a 79 Shore A PVC compound for outdoor-rated jackets over crosslinked polyethylene. It is capable of Oil I and II ratings and is designed to pass -25 °C cold impact and -40 °C cold bend tests.

Apex P-55007 is an 82 Shore A blend of PVC and thermoplastic polyurethane (TPU) formulated for use in appliance wiring and tray cables over polyethylene cores. The most flame-retardant of a series of PVC/TPU blends, it has an oxygen index of 35% and a brittle point of -49 °C.

Flexalloy® 9627-79 is a 67 Shore A PVC elastomer developed as a spatter-, oil-, and UV-resistant material for welding cable.  It meets the UL-62 standard for flexible cable and is for use over PVC or crosslinked polyethylene cores. The low-gloss compound has a -38 °C brittle point and a 34% oxygen index.

“Teknor Apex originally developed these four PVC jacket compounds to solve challenging application problems in the marketplace,” said David Braun, wire and cable industry manager for the Vinyl Division. “While meeting stringent flame test standards for power and control tray cables, each of the four maximizes certain properties that enhance the performance of target applications.”

About Teknor Apex. Teknor Apex Company, a privately held firm founded in 1924, is one of the world’s leading custom compounders of plastics.  Teknor Apex produces flexible and rigid vinyl, thermoplastic elastomers, nylons, color masterbatches, specialty chemicals, and hoses. The company is headquartered in Pawtucket, RI, U.S.A. and operates thirteen manufacturing facilities worldwide in the United States, Belgium, Germany, China, and Singapore. To learn more visit:

The Vinyl Division of Teknor Apex Company is a leading manufacturer of custom compounds, including ApexÒ flexible and rigid vinyl, FlexalloyÒ vinyl elastomers, FireguardÒ low-flame, low-smoke compounds, and HalguardÒ low-smoke, halogen free, flame retardant compounds and elastomers. The Division is a global supplier to the appliance, automotive, construction, medical device, wire and cable, and other industries.

READER INQUIRY INFORMATION:  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:

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