ES421 - 4:1 Polyolefin Heat Shrink Tubing

Highly Flame-Retardant, Flexible, Low Shrink Temperature, Polyolefin Tubing

4:1 Polyolefin Heat Shrink Tubing Applications

4:1 polyolefin heat shrink tubing is ideal for repairing harnesses or cables. The shrink ratio will allow this tubing to pass over a large diameter connector or transition and then shrink down onto a smaller diameter jacket. Can insulate or protect a substrate of varying dimensions.

Heat Shrink Tubing Characteristics

  • 125°C VW-1 600V File No. E323940
  • SAE-AMS-DTL-23053/5 Class 1&3
  • RoHS, Sony-SS-00259
  • Very flexible, highly flame retardant(except clear)
  • Resistant to common fluids and solvents
  • Operating temperature: -55 °C to +135 °C
  • Minimum shrink temperature: 70 °C
  • Minimum fully recovery temperature: 100 °C
  • Standard color: Black
  • Special colors: Red, Blue Yellow, Green

4:1 Polyolefin Properties

CharacteristicTest MethodTest Result
Tensile strength ASTM D 2671 14MPa
Elongation at break ASTM D 2671 800%
Tensile strength after aging (175 /168hrs.)°C ASTM D 2671 14MPa
Elongation after aging (175°C/168hrs.) ASTM D 2671 350%
Flammability UL 224 VW 1 SAE AMS DTL 23053/5 Pass
Heat shock (250°C/4hrs.) ASTM D 2671 No cracking
Cold bend test ( -55°C /4hrs.) ASTM D 2671 No cracking
Dielectric strength ASTM D 150 20kV/mm
Volume resistance ASTM D 876 1014 Ω Cm.
Copper corrosion UL 224 Pass
Water absorption ASTM D 570 0.15%
Chemical resistance SAE AMS DTL 23053/5 Pass
Longitudinal shrinkage UL 224 0±5%
Eccentricity UL 224 >30%

4:1 Polyolefin Specifications

Size (Inches)Minimum Expanded ID as Supplied in Inches (mm)Maximum Recovered ID After Heating (mm)Minimum Wall Thickness after Heating (mm)Standard Spool Length (feet)
3/4 .752 (19.1) .181 (4.6) .067 (1.7) 4' lengths
1 1.00 (25.4) .276 (7.0) .067 (1.7) 4' lengths
1 1/2 1.50 (38.1) .374 (9.5) .067 (1.7) 4' lengths
2 2.00 (50.8) .551 (14.0) .067 (1.7) 4' lengths
3 3.00 (76.2) .811 (20.6) .067 (1.7) 4' lengths
4 4.02 (102) 1.05 (26.7) .067 (1.7) 4' lengths
4 1/2 4.53 (115) 1.45 (36.8) .067 (1.7) 4' lengths

Technical specifications subject to change without notice.

need more information? click here for a quote or call us at 1(800) 247-2114 to speak with an Electro representative.