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Heat Shrink Tubing

Adhesive-lined Flexible Polyolefin Tubing-3:1

Durable flexible polyolefin adhesive-​lined shrink tubing offers superb environmental protection for a wide assortment of electronic wiring components including wire splices, wire and cable bundles and harness breakouts. Ideal for applications involving automotive, truck, and marine cable and wiring components, flexible adhesive-​lined heat shrink tubing offer exceptional protection, even in the harshest, most extreme environments.
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Adhesive-lined Flexible Polyolefin Tubing-3:1

Product Code: NP-321-1/8

Specs

Expanded I.D.(inch/mm) .125/3,18
Recovered I.D.(inch/mm) .040/1,02
Recovered Wall Thickness (Nominal) .040 in. 1.02 mm
Size 1/8
Shrink Ratio 3:1
Meltable Recovered Wall Thickness (Nominal) .020/0,51
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  • 500ft
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Product Code: NP-321-3/16

Specs

Expanded I.D.(inch/mm) .187/4,75
Recovered I.D.(inch/mm) .062/1,57
Recovered Wall Thickness (Nominal) .040 in. 1.02 mm
Size 3/16
Shrink Ratio 3:1
Meltable Recovered Wall Thickness (Nominal) .020/0,51
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  • 200ft
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Product Code: NP-321-1/4

Specs

Expanded I.D.(inch/mm) .250/6,35
Recovered I.D.(inch/mm) .080/2,03
Recovered Wall Thickness (Nominal) .040 in. 1.02 mm
Size 1/4
Shrink Ratio 3:1
Meltable Recovered Wall Thickness (Nominal) .020/0,51
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Product Code: NP-321-3/8

Specs

Expanded I.D.(inch/mm) .375/9,53
Recovered I.D.(inch/mm) .120/3,05
Recovered Wall Thickness (Nominal) .055 in. 1.40 mm
Size 3/8
Shrink Ratio 3:1
Meltable Recovered Wall Thickness (Nominal) .025/0,62
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  • 100ft
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Product Code: NP-321-1/2

Specs

Expanded I.D.(inch/mm) .500/12,70
Recovered I.D.(inch/mm) .160/4,06
Recovered Wall Thickness (Nominal) .070 in. 1.78 mm
Size 1/2
Shrink Ratio 3:1
Meltable Recovered Wall Thickness (Nominal) .030/0,76
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Product Code: NP-321-3/4

Specs

Expanded I.D.(inch/mm) .750/19,05
Recovered I.D.(inch/mm) .250/6,35
Recovered Wall Thickness (Nominal) .085 in. 2.16 mm
Size 3/4
Shrink Ratio 3:1
Meltable Recovered Wall Thickness (Nominal) .035/0.89
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Product Code: NP-321-1

Specs

Expanded I.D.(inch/mm) 1.000/25,40
Recovered I.D.(inch/mm) .320/8,13
Recovered Wall Thickness (Nominal) .100 in. 254 mm
Size 1
Shrink Ratio 3:1
Meltable Recovered Wall Thickness (Nominal) .040/1,02
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Product Code: NP-321-1-1/2

Specs

Expanded I.D.(inch/mm) 1.500/38,10
Recovered I.D.(inch/mm) .510/12,95
Recovered Wall Thickness (Nominal) .100 in. 254 mm
Size 1-1/2
Shrink Ratio 3:1
Meltable Recovered Wall Thickness (Nominal) .040/1,02
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Length:
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  • 50ft
  • 100ft
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Additional Information

This adhesive-​lined shrink tubing - 3:1 - flexible Polyolefin has a minimum shrink temperature of 250°F (121°C), where it will quickly shrink down to 33% of its original size creating a skin tight, water resistant, seal. The environmental temperature of the 1/8 inch polyolefin heat shrink tube is -55°C (-67°F) to 110°C (230°F), however, adhesive reflow will occur at temperatures above 80ºC (176ºF). Nelco Products offers this 1/8" adhesive lined heat shrink tubing in three different colors: Clear, black, and red. The black and red are UL Recognized.

Physical Property

Typical Value-US Units (metric)

 

Tensile Strength +

2100 psi

 

Ultimate Elongation

450%

 

Longitudinal Change

+1, -15%

 

Secant Modulus (2%)

17,000 psi

 

Specific Gravity

1.3

 

*Heat Aging (168 hrs. @175°C)

Elongation 175%

 

*Heat Shock (4 hrs. @ 250°C)

No dripping, flowing, cracking

 

*Low Temperature Flexibility (4 hrs @

-55°C )

No Cracking

 

Flammability

Self-Extinguish meets UL 224 All-Tubing Flame Test (jacket)

 

Volume Resistivity

1014 ohm/cm

 

Dielectric Strength

700 V/mil

 

Chemical Property (Test Method)

Typical Value

 

Corrosion Resistance (Copper Mirror)

Non-corrosive

 

Fungus Resistance

Non-nutrient

 

*Low Temperature Flexibility

0.30%

 

Fluid Resistance

Excellent

 

Application Specifications

 

SAE-AMS-DTL-23053/4; Class 3; AMS-3634; UL File E157227; ABS; RoHS Compliant

*Outer wall only