Processing Magazine

Lightweight polyethylene tubing for multi-purpose, specialty needs

February 28, 2007
Now available from NewAge Industries are two types of polyethylene tubing: linear low-density formula and a style co-extruded with EVA (Ethylene Vinyl Acetate). While both are made from non-toxic ingredients conforming to FDA standards, they offer different performance characteristics. Uses include air lines, chemical and fluid transfer, food and beverage processing and distribution, pharmaceutical processing, pneumatics and instrumentation, potable water, deionized water, wire jacketing, laboratory applications, and decorative coverings. Linear low-density polyethylene tubing is a lightweight, flexible product suitable for a variety of uses due to its relatively low cost. It offers no transfer of odor or taste to critical streams, good dielectric properties, and is chemically inert, forming a good barrier to gases, vapors, and moisture. The linear low density formula provides enhanced resistance to stress cracking (over that of low density). It’s durable and stays flexible at temperatures well below 0 degrees F. The co-extruded version – polyethylene-lined EVA – performs much like linear low-density polyethylene tubing and offers additional features. Its ingredients conform to USP Class VI standards, and it provides greater flexibility over linear low density because of the bonded EVA outer layer. Polyethylene-lined EVA may be substituted for PTFE fluoropolymer tubing in applications involving working temperatures below 100 degrees F, which can result in a cost savings of 50 percent or more.