DWFR (dual wall flame retardant) tubing is a dual wall product that meets the stringent flammability requirements of UL VW-1. There are numerous single wall tubing products meeting VW-1, and now TE offers a dual wall product meeting this high level of resistance to flammability. DWFR tubing electrically insulates and mechanically protects while resisting moisture. This tubing is offered in both 3:1 and 4:1 heat shrink ratios, and its inner wall of adhesive bonds to a variety of substrates. This combination of properties allows DWFR tubing to meet a broad range of application requirements.
The introduction of DWFR tubing brings a UL VW-1 rated dual wall product to the market from one of the foremost leaders in heat shrink tubing. This product is intended for applications exposed to moisture in a variety of environments across a range of industries.
With 3:1 and 4:1 shrink ratios, DWFR tubing offers design versatility and allows customers to use a few sizes to cover a wide range of substrate diameters, reducing their inventory requirements and costs
The irradiated polyolefin jacket with thermoplastic adhesive inner wall electrically insulates and environmentally seals and protects components and other electrical connections and terminations
With its broad range of sizes, from 3mm to 52mm inside diameter when unrecovered, DWFR tubing is suitable for a wire range of applications
The thermoplastic adhesive inner wall bonds to a wide variety of plastics, rubbers and metals, sealing and protecting components and interconnections, and preventing moisture ingress
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