This Black heatshrink starts at 3/8in and decreases by a 3:1 ratio. Adhesive Thin walled and sold in 4ft lengths.
Adhesive heat-shrink is definitely a step above it's simpler cousin. Besides having a higher shrink ratio, the interior is lined with a goo that melts and seals the splice when the tube is heat-shrunk. It makes an impressively water-tight seal.
NTE’s Dual Wall Heat Shrink Tubing is flexible, polyolefin based heat−shrinkable tubing with a thermoplastic adhesive inner liner which flows when heated (yeah, I said that already. Why are you repeating yourself?). After shrinking and cooling, it provides a permanent flexible water proof barrier.
This tubing is suitable for a wide range of applications, such as encapsulation cables, wires, electrical components and splices. The choice of high shrink ratios means more flexibility of usage such as in the covering of irregular shaped objects.
MIL−DTL−23053/4, Class 3
|Properties||Test Method||Typical Value|
|Tensile Strength||ASTM D 638||10 N/mm^2|
|Elongation at Break||ASTM D 638||300%|
|Longitudinal Change||ASTM D 2671||+5%. -5% Max|
|Water Absorption||ASTM D 570||0.5%|
|Specific Gravity||ASTM D 792||1.3|
|Copper Corrosion||ASTM D 2671 B||Good|
|Continuous Operating Temperature||-55° to 85°C|
|Minimum Shrink Temperature||> 110°C|
|Heat Shock (4 Hours at 250°C)||ASTM D 2671||No Dripping, Cracking, or Flowing of Outer Wall|
|Heat Aging (168 Hours at 150°C)||ASTM D 638||Elongation 300%|
|Low Temperature Flexibility (-55°C)||ASTM D 2671 C||No Cracking|
|Flammability||UL 224||Pass (Except Clear)|
|Dielectric Strength||ASTM D 2671||15kV/mm|
|Volume Resistivity||ASTM D 257||10 @ 14 Ohm.cm|
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Warning: This product contains chemicals known to the State of California to cause cancer and birth defects or other reproductive harm.
Please visit www.P65Warnings.ca.gov for more information. This item was manufactured prior to August 31, 2018.