4:1 Polyolefin Heatshrink Tubing
4:1 Polyolefin Heatshrink Tubing
Shrinkflex 4:1 heatshrink tubing is the most versatile of the heatshrink products. The very high shrink ratio allows the material to fit over very large plugs or connectors and shrink down tightly.

4:1 Shrinkflex is ideal as a strain relief on assemblies that are subject to frequent connection cycles.

Shrinkflex 4:1 heatshrink tubing is available in black.

heatshrink comparison chart Heatshrink Shrink Ratio Comparison
hetshrink printing
heatshrink application
Sizes
Nominal
Size
Product
Part #
Unshrunk Diameter
Shrunk
Diameter
Standard Spool Put-Ups Colors Lbs/
100'
Bulk Shop
1/2"
3/4"
1"
1 1/4"
1 1/2"
H4N0.50BK
H4N0.75BK
H4N1.00BK
H4N1.25BK
H4N1.50BK
12.0mm
19.0mm
25.4mm
32.0mm
38.0mm
3.0mm
4.5mm
7.0mm
8.0mm
9.5mm
200'
100'
100'
100'
100'
25'
25'
25'
25'
25'
BK
BK
BK
BK
BK
1.17
2.75
3.25
4.00
4.25
Specifications
Techflex makes every effort to ensure accuracy and completeness when describing the technical properties of our products. Customers are encouraged to test and evaluate the products for their own unique requirements.
Physical Properties
Flammability Rating UL-224, VW-1
Recommended Cutting Scissor
Colors 1
Tensile Strength PSI (ASTM D-638) lbs. 1,500
Elongation % (ASTM D-638) 200
Specific Gravity (ASTM D-792) 1.35
Low Temp. Flex (MIL-DTL-23053) No Cracking
Heat Shock (MIL-DTL-23053) No Cracking
Secant Modulus PSI (MIL-DTL-23053 25,000
Longitudinal Change %(MIL-DTL-23053) +/- 5
Moisture Absorption % (ASTM D-570) .5
Electric
Dielectric Strength (ASTM D-149; V/Mil) 500
Volume Resistivity (ASTM D-257; ohm-cm) 1.0x10 14
Other Information
RoHS Yes
UL/CSA Yes
Operating Temperatures
Minimum Continuous -67°F/-55°C
Maximum Continuous (MIL-I-23053) 275°F/135°C
Melt (ASTM D-2117) 392°F/200°C
RoHS UL CSA
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