Heat Shrink Tubing Medium Wall w/Adhesive 3:1 Shrink Ratio Description: NTE’s Medium Wall Heat Shrink Tubing is polyolefin based heat−shrinkable tubing suitable for a wide range of telecom and power applications like joints and cable repair. This tubing is ideally suited for aerial, underground and direct burial installation. Technical Data: Properties Test Method Typical Value Physical Tensile Strength Elongation at Break Longitudinal Change Water Absorption ASTM D 638 ASTM D 638 ASTM D 2671 ASTM D 570 14 N/mm2 400% +0%, −10% Maximum < 0.15% Maximum ISO 846 Meth. A ASTM D 2671 B Rate I Good Chemical Fungus Resistance Copper Corrosion Thermal Continuous Operating Temperature Minimum Shrink Temperature Heat Shock (4 Hours at +250°C) ASTM D 2671 Heat Aging (168 Hours at +150°C) ASTM D 638 Low Temperature Flexibility (−55°C) ASTM D 2671 C −40° to +120°C > +110°C No Dripping, Cracking or Flowing Ultimate Elongation 300% No Cracking (Outer Wall Only) Electrical Dielectric Strength Volume Resistivity ASTM D 2671 ASTM D 257 17kV/mm 10 @ 14 ohm.cm Products Covered: NTE Catalog Number Size (inch) Ratio 48” Exp. Rec. Rec. Wall Thickness (mm) I.D. (in mm) 47−300124−BK .470 3:1 12 3 1.5 47−300206−BK .790 3.33:1 20 6 2.5 47−300278−BK 1.060 3.37:1 27 8 2.5 47−304013−BK 1.570 3.07:1 40 13 2.5 47−305117−BK 2.000 50 17 2.5 47−307222−BK 2.830 3.27:1 72 22 2.5 47−309029−BK 3.540 3.1:1 90 29 2.5 47−312040−BK 4.720 3:1 120 40 2.5 3:1 Rev. 12−12