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» home   » heat shrink   » 2:1, 3:1, 4:1 heat shrink tubing   » 2:1 heat shrink tubing specifications

2:1 Heat Shrink Technical Specifications
Minimum Shrink Temperature: 120°C

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Size
(In.)
Expanded Recovered
Internal Diameter Minimum
(D)
Internal Diameter Maximum
(d)
Minimum Total Wall Thickness
(t)
In. mm In. mm In. mm
3/64" 0.055 1.4 0.022 0.58 0.013 0.330
1/16" 0.075 1.9 0.031 0.79 0.014 0.356
3/32" 0.110 2.8 0.046 1.17 0.017 0.432
1/8" 0.138 3.5 0.062 1.57 0.017 0.432
3/16" 0.200 5.0 0.093 2.36 0.017 0.432
1/4" 0.256 6.5 0.125 3.18 0.022 0.559
3/8" 0.380 9.6 0.187 4.75 0.022 0.559
1/2" 0.500 12.8 0.250 6.35 0.022 0.559
3/4" 0.760 19.3 0.370 9.35 0.027 0.686
1" 1.02 25.7 0.500 12.7 0.030 0.762
1-1/4" 1.26 32.2 0.630 16.0 0.034 0.864
1-1/2" 1.5 38.1 0.586 14.9 0.034 0.864
2" 2.0 51.0 1.0 25.4 0.038 0.965
3" 3.0 76.2 1.5 38.1 0.042 1.07
4" 4.0 102.0 2.0 50.8 0.046 1.17
5" 5.0 127.0 2.5 63.5 0.046 1.17

2:1 Heat Shrink Tubing Technical Specifications

PROPRIETARY TEST METHOD TYPICAL VALUE
Physical    
Tensile Strength
ASTM D 638 13 N/mm²
Elongation at Break
ASTM D 638 400%
Longitudinal Change
ASTM D 2671 +5%,-5% maximum
Water Absorption
ASTM D 570 0.15% Maximum
Specific Gravity
ASTM D 792 1.4
Electrical    
Dielectric Strength
ASTM D 2671 25kV/mm
Volume Resistivity
ASTM D 257 10@ 14 ohm.cm
Chemical    
Fungus Resistance
MIL-I-7444 Inert
Fluid Resistance
MIL-I-23053/5 Good
Cooper Corrosion
ASTM D 2671 B Good
Thermal    
Continuous Operating Temperature
  -55°C to +135VC
Minimum Shrink Temperature
  >90°C
Heat Shock 4 hours at 250°C
ASTM D 2671 No dripping, cracking or flowing
Heat Aging 168 hours at 150°C
ASTM D 638 Elongation 300%
Low Temperature Flexibility -55°C
ASTM D 2671C No cracking
Flammability
UL 224VWI Pass (colors only)

*Clear Tubing is not Flame Retarded

Specification reference:
UL 224 125°C, 600V, VW-1
CSA-C22.2 No. 198-M1986 125°C, 600V
File LR33298 Guide 400-U-9

 

 

Specifications - Heat Shrink Tubing 2:1 Adhesive
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 Features:

  • Shrink ratio: 50% or more in the radial direction
  • Operating temperature: -55°C to 125°C
  • Flammability: Ul VW-1 (Jacket only)
  • Minimum shrink temperature: 90°C

 Standard:

  • MIL-DTL-23053/4 Class2
  • UL 224 (File Number: E153276)
  • CSA C22.2 (Reference Standard)

 

Property Test Method Value
Physical
Unaged
Tensile strength ASTM D 638
UL 224
Min. 1.1kgf/mm²
Elongation Min. 200%
Aged
Tensile strength ASTM D 638
UL 224
175°C/168hrs
Min. 0.8kgf/mm²
Elongation Min. 100%
Density
ASTM D-792 Max. 1.40g/cm²@23°C
Heat Shock
MIL-I-23053 Pass @ 250°Cx4hrs
Low Temperature Flex
MIL-I-23053 No crack @ -55°C
Flexibility
158°C/168 hrs No crack
Secant Modulus
UL 224 Max. 173MPa
 
Electrical
Dielectric Strength
UL 224 Min. 2500V
Volume resistivity
UL 224 Min. 1x1014Ω - cm
 
Chemical
Copper Corrosion
MIL-I-23053
175°C/16hrs
No Corrision
Copper Stability
Elongation
UL 224
158C/16hrs
UL 224
158C/16hrs
No sign of degradation
MIn. 100%
Flammability (vW-1)
UL 224
UL 224 Pass

 

SIZE EXPANDED RECOVERED Standard
Length
Internal Diameter
Minimum
Internal Diameter
Maximum
Minimum Total Wall
Thickness (Total Wall))
Minimum Wall
Thickness
(Adhesive Wall)
in. mm in. mm in. mm in. mm Ft.
1/8” 0.126 3.2 .062 1.57 0.025 0.43 0.008 0.20 4
3/16” 0.189 4.8 .093 2.36 0.025 0.43 0.008 0.20 4
1/4” 0.252 6.4 .125 3.18 0.030 0.56 0.008 0.20 4
3/8” 0.378 9.6 .187 4.75 0.030 0.56 0.012 0.30 4
1/2” 0.500 12.7 .250 6.35 0.030 0.56 0.012 0.30 4
3/4” 0.752 19.1 .375 9.53 0.035 0.69 0.012 0.30 4
1” 1.00 25.4 .50 12.70 0.040 0.76 0.012 0.30 4
1-1/2” 1.50 38.1 .75 19.10 0.043 0.86 0.012 0.30 4