Heat Shrink Tubing Dual Wall Adhesive Lined 4:1 Ratio

4:1 Dual Wall Heat Shrink

Our 4:1 heat shrink tubing is also available with a "dual-wall" construction. 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, the inner layer forms an adhesion layer between the tubing and the component or wire. This provides a watertight seal, protecting the connector and/or wire.

• 4:1 Shrink Ratio with melt adhesive inner lining (shrinks to 1/4 its original diameter) 
• Longitudinal Shrinkage: up to 15% 
• Meets requirements of AMS-DTL-23053/4 (formerly MIL-I-23053/4), Class 3 
• UL 224 VW-1 and CSA OFT recognized 
• Maximum Continuous use temperature 135°C 
• Shrink Temperature of 100°C and operating temperature of -55°C to + 135°C 
• Crosses to: Sumitomo W3B2(4X), Raychem ATUM 4X, LG GSHS-4635WT 
• Typical applications include: Insulation, Wire Identification, Wire Bundling, Mechanical Protection, Color Coding, Lightweight Harnessing, Physical/Electrical Protection of Components, Strain Relief, and Solder Insulation.