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.