1/2 Inch 4:1 Polyolefin Dual Wall Heat Shrink Tubing - 4 Feet per Piece (Black) for Electrical Insulation, Wire Protection, and Cable Repair

BuyHeatshrink 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 ft/piece

41 Shrink Ratio with melt adhesive inner lining (shrinks to 1/4 its original diameter)

Meets requirements of AMS-DTL-23053/4 (formerly MIL-I-23053/4), Class 3

Longitudinal (Length) Shrinkage up to 15%

Shrink Temperature of 100°C and operating temperature of -55°C to + 135°C