ES421ALF - Flexible 4:1 Adhesive Lined Heat Shrink Tubing

Flexible, High-Shrink Ratio, Adhesive Lined, Polyolefin Tubing

Applications

Environmentally seals and protects a wide variety of electrical applications, including back end connector sealing, breakouts, and connector to-cable transitions. High expansion ratio makes it possible to repair most damaged cable jackets without removing connectors. The ES421ALF dual wall heat shrink tubing is more flexible than the ES421AL product.

Characteristics

  • 125°C VW-1 600V File No. E323940
  • SAE-AMS-DTL-23053/4
  • RoHS, Sony-SS-00259
  • Operating temperature: -55 °C to +125 °C
  • Minimum shrink temperature: 100 °C
  • Standard Color: Black

Properties

CharacteristicTest MethodTest Result
Tensile strength ASTM D 2671 10.4MPa(Min.)
Tensile strength after aging (158°C /168hrs.) ASTM D 2671 Remains 70%
Elongation at break ASTM D 2671 300%
Elongation break after aging (158°C/168hrs.) ASTM D 2671 150%
Longitudinal shrinkage UL 224 0 to -10%
Heat shock (225°C/4hrs.) ASTM D 2671 No cracking, no dropping
Cold bend test ( -30°C /4hrs.) ASTM D 2671 No cracking
Voltage Stress (AC 2500V/60 seconds) ASTM D 2671 No Breakdown
Volume resistance ASTM D 876 1014 Ω Cm.
Flammability UL 224 VW 1 SAE AMS DTL 23053/4 Self extinguishes within 30 seconds
Copper corrosion (158°C /168 hrs) UL 224 Pass
Water absorption ASTM D 570 <0.5%
Adhesion to Aluminium (AL) ASTM D 2671 60N/25mm
Fluid Resistance Tensile Strength: 7MPa(min.) Elongation: 300% (min.) 24 hrs. at 23°C in Diesel and lubricating oil

Specifications

Minimum Expanded ID as Supplied in Inches (mm)Maximum Recovered ID After Heating (mm)Total Wall ThicknessAdhesive ThicknessStandard Spool Length (feet)
3/16 (4.75) .039 (1.0) .039 (1.0) .020 (0.5) 500
5/16 (7.92) .079 (2.0) .039 (1.0) .020 (0.5) 250
1/2 (12.70) .118 (3.0) .055 (1.4) .024 (0.6) 100
5/8 (15.88) .157 (4.0) .063 (1.6) .032 (0.8) 100
1 (25.40) .236 (6.0) .085 (2.15) .032 (0.8) 100
1 1/4 (31.75) .315 (8.0) .094 (2.4) .039 (1.0) 100
2 (50.80) .512 (13.0) .094 (2.4) .039 (1.0) 100

Technical specifications subject to change without notice.

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