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3/8" 3:1 Adhesive Lined Heat Shrink Tubing

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 Product Description

Our 3:1 heat shrink tubing is also available with a "dual-wall" construction. It is called dual wall because it is actually made up of two different materials together. One wall - the outer wall - is Polyolefin heat shrink. The second wall (hence the name "dual wall") - the inner wall - is a hot melt adhesive. When exposed to heat (usually a bit lower than the activation temperature of the heat shrink), the inner layer begins to flow (just like a hot melt glue). When the tubing shrinks and cools down, inner layer forms an adhesion layer between the tubing and the component or wire. This provides a water-tight seal, protecting the connector and/or wire. It also allows the tubing to stick to the substrate. This is why this tubing is also called adhesive lined heat shrink tubing


  • AMS-DTL-23053: /4-0375
  • Size before shrinking: 0.360"
  • Size after shrinking: .120"
  • 3:1 Shrink Ratio with melt adhesive inner lining (shrinks to 1/3 its original diameter)
  • Up to 15% longitudinal shrinkage
  • Meets requirements of AMS-DTL-23053/4 (formerly MIL-I-23053/4), Class 3
  • UL 224 VW-1 and CSA OFT recognized
  • Maximum use temperature 135°C
  • Shrink Temperature of 90°C and operating temperature of -55°C to + 110°C
  • Crosses to : Sumitomo W3B2, Raychem ATUM, Alpha FIT-321, 3M EPS-300, Canusa CPA-100 , LG GSHS-3635W
  • Typical applications include: Insulation, Wire Identification, Wire Bundling, Mechanical Protection, Color Coding, Lightweight Harnessing, Physical/Electrical Protection of Components, Strain Relief, and Solder Insulation.

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