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2:1 Adhesive Lined Dual wall Heat Shrink Tubing

Sold in 4 Ft Sticks 1/8" - 1-1/2" Available 5 - 100 Pc Packs

2:1 Dual Wall Heat Shrink Tubing Features

  • Shrink Ratio: 50% or More In The Radial Direction, 5% or Less In The Axial Direction 
  • Continuous Operating Temperature: - 55℃(-67℉) to 110℃ (230℉) 
  • Flammability: UL VW-1 (Jacket only except clear) 
  • Excellent Electrical Insulation Properties 
  • AMS-DTL-23053/4 Class 2 (Formerly MIL-DTL-23053/4 Class 2) 
  • UL 224 (File Number: E319314) 
  • ROHS Compliant
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Please Note: Our Diameters for Heat Shrink Tubing are measured as ROUND TUBE, NOT FLAT.

Product Details

This 2:1 Dual wall or adhesive lined heat shrink tubing is designed for general purpose applications such as the insulation and strain relief of electrical connections and terminations, light-duty harnessing, jacketing and bundling. The adhesive lining forms an environmental seal that helps protect against moisture.

Product Specifications

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Property Test Method Value
physical Unaged Tensile Strength ASTM D638 Min. 1500psi
Elongation Min. 2000psi
Fluid Resist. Tensile Strength ASTM D638 Min. 1000 ps
Dielectric strength ASTM D2671 Min. 400 Volts/mil
Heat shock 250℃/4 hrs No cracks, flowing, or dripping
Low temperature flex ASTM D746 No crack @-55℃
Secant Modulus ASTM D882 Max. 25,000 psi
Heat Resistance ASTM D2671 No cracks
Electrical Dielectric strength ASTM D2671 Min. 500 Volts/mil
Volume resistivity ASTM D876 Min. 1x1012Ω- cm
Chemical Copper corrosion 121℃16hrs No corrosion
Fungus resistance ASTM G21 No growth
Water Absorption ASTM D570 Max. 0.5%
Flammability ASTM D2671 Pass


Product Dimensions
Size Expanded Recovered
Internal Diameter 
Minimum (D)
Internal Diameter 
Maximum (D)
Minimum Total Wall 
Thickness (Total Wall) (T)
Normal Wall Thickness 
(Adhesive Wall) (T)
Inch Size In. mm In. mm In. mm In. mm
1/8" 0.125 3.2 0.062 1.57 0.017 0.43 0.008 0.20
3/16" 0.187 4.7 0.093 2.36 0.017 0.43 0.008 0.20
1/4" 0.250 6.4 0.125 3.18 0.022 0.56 0.008 0.20
3/8" 0.375 9.5 0.187 4.75 0.022 0.56 0.012 0.30
1/2" 0.500 12.7 0.250 6.35 0.022 0.56 0.012 0.30
3/4" 0.750 19.1 0.375 9.53 0.027 0.69 0.012 0.30
1" 1.000 25.4 0.500 12.7 0.030 0.76 0.012 0.30
1-1/2" 1.500 38.1 0.750 19.1 0.034 0.86 0.012 0.30

Product Manuals

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Frequently Asked Questions

Have a question that is not answered here? Please go to our Contact Us page and submit your question to us.

Q:What is the best way to shrink heat shrink tubing?

A:To shrink the heat shrink tubing we recommend using our heat guns that are specifically designed to produce the correct amount of heat to shrink tubing for wire protection.