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Over-Expanded Very Flexible Polyolefin-4:1

H221(4X) shrink tube is an overexpanded 4:1 shrink tubing is ideal for cable jacket retrofit or repair and electrical insulation of wire assemblies with over sized components/connectors. The flexible, flame-retardant tubing is specially overexpanded with minimal longitudinal change (5% max.). H2221 (4X) is made of very flexible, heat-shrinkable polyolefin which is mechanically tough, chemically resistant and can be easily surface printed.

  • Meets AMS-DTL-23053/5, Class 1 Overexpanded material and functional requirements (with the exception to wall thickness).
  • Shrink temperature: 90°C
  • Operating temperature range: -55°C to +135°C and up to 200°C for short time durations
Standard Color: Black
Standard Packaging: 4' lengths for 1", 1-1/2" and 2" diameter and 3' lengths for 3" and 4" diameter



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 Size (in./mm) Expanded ID (in./mm) Recovered ID (in./mm) Recovered
Wall Thickness
H221 (4X) 1"
H221 (4X) 1-1/2"
H221 (4X) 2"
H221 (4X) 3"
H221 (4X) 4"
1.000 / 25,40
1.500 / 38,1
2.000 / 50,4
3.000 / 76,2
4.000 / 101.6
.260 / 6,6
.375 / 9,5
.500/ 12,7
.750/ 19,1
1.000/ 25,4
.059 inch
.059 inch
.059 inch
.059 inch
.059 inch

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