(Plastics Today) -- A modified polyphenylene oxide (PPO) has been applied in wire harness insulation to create a product that's inherently flame retardant (FR) and free of environmentally harmful heavy metals. Nissei Eco Co. Ltd. codeveloped the insulation, called ECO-01, with Sabic Innovative Plastics (Pittsfield, MA), utilizing that company's Flexible Noryl material. Sabic IP has positioned Noryl as an alternative for OEMs looking to move away from wire-jacketing stalwart polyvinyl chloride (PVC).
Selling points, according to Sabic IP, include the fact that Noryl is nonhalogenated, helping customers meet global environmental requirements that increasingly target that chemical. Sabic IP also reports that Noryl outperforms PVC in wear resistance. Using the JASO-D-608-92 abrasion test, Nissei Eco found that Noryl has higher abrasion resistance than vinyl. Sabic IP says Noryl's high-temperature performance, which satisfies UL105C, does not require additional secondary steps like cross linking through electron beam radiation, a process required for flame-retardant polyethylene (PE). Nissei Eco says that ECO-01 tubing for wire harnesses has already been specified by several Japanese home appliance manufacturers. The company is working to gain specifications for the product around the globe.