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Black Dual wall adhesive lined heat shrink polyolefin tubing W-1-SB(2X)

Black Dual wall adhesive lined heat shrink polyolefin tubing W-1-SB(2X)

Place of Origin : China


Certification : CE,RoHS,VDE,UL,CUL,LPCB

Model Number : 2:1 Dual wall adhesive lined heat shrink polyolefin tubing W-1-SB(2X)

MOQ : 100M

Packaging Details : 500FT/1000FT Plastic/Wooden Spool

Delivery Time : Normally 15 days

Payment Terms : T/T,L/C

Supply Ability : 50*20’GP/Month

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2:1 Dual wall adhesive lined heat shrink polyolefin tubing W-1-SB(2X)

Quick Detail:

  • Shrink Ratio: 2:1
  • -55℃ to 125℃
  • Out jacket flame retardant, inner adhesive self-extinguished
  • Super sealing against water, moisture or other contaminants
  • Longitudinal shrink ratio: ≤+8%
  • RoHS Compliant
  • Felxible
  • Flame Retardant
  • Shrink temperature:120℃


Heat shrink tubing (or, commonly, heat shrink or heatshrink) is a mechanically expanded

extruded plastic tube ordinarily made of nylon or polyolefin, which shrinks in one plane

only (its diameter) when heated, to between one-half and one-sixth of its diameter.

Heat shrink tubing is manufactured in a multitude of varieties and chemical makeups

with the exact composition of each type being dependent on the intended application.

From near microscopically-thin-wall tubing to rigid, heavy-wall tubing, each type

has precise design and chemical additives that make it suitable for meeting any of

a wide variety of environmental demands. Heat shrink tubing is rated by its

expansion ratio, a comparison of the differences in expansion and recovery rate.

Heat shrink is used to insulate wires, providing abrasion resistance and environmental

protection for stranded and solid wire conductors, connections, joints and terminals

in electrical engineering. It can also be used to repair the insulation on wires or to

bundle them together, to protect wires or small parts from minor abrasion, and to

create cable entry seals, offering environmental sealing protection.


Different applications require different materials:

PTFE (fluoropolymer) tubes have a wide operating temperature range (-55 to 175 °C),

a low coefficient offriction, and high resistance to chemicals and punctures.

Viton, another fluoropolymer with high chemical resistance, is widely used in hydraulic equipment.

It is highlyflexible, with a very wide operating temperature range of -55 to 220 °C,

making it suitable for protecting sensitive devices against heat.

Polyvinylidene fluoride (PVDF) tubes are intended for high temperature applications.

Fluorinated ethylene propylene (FEP) is a lower-cost alternative to PTFE.

Elastomeric tubes maintain high flexibility even at low temperatures and

meet stringent international specifications. Their operating temperature range is -75 to 150°C.

The material is resistant to many chemicals (including diesel and petrol)

and has good resistance to abrasion, even in severe environmentalconditions.

A common shrink ratio is 2:1

Silicone rubber offers excellent resistance to scrape abrasion and high flexibility.

Their operating temperature range is -50 to 200°C[citation needed]

Polyolefin tubes, the most common kind, have maximum continuous-use temperatures

from -55 to 135 °C, and are used by the military, aerospace and railway industries.

They are flexible and fastshrinking, and manufactured in a wide rangeof colors (including clear),

which can be used for color-coding wires.With the exception of black,

they tend to have lower resistance to ultraviolet light;

accordingly, only black is recommended for outdoor applications.

A common shrink ratio is 2:1, but highgrade polyolefin heat

shrink is also available with a 3:1 ratio.

PVC tubes are available in several colors and can be used outdoors.[citation needed]

2:1 Dual wall adhesive lined heat shrink
polyolefin tubing W-1-SB(2X)
Adhesive lined heat shrink tubing with environmental sealing capability
for a wide variety of electrical applications, including automotive and
marine wire harness, wire splices, breakouts, and connector-to-cable transitions.

As Supplied

Inner diameter

After Recovery (mm)








Total wall


Wall thickness of

adhesive layer



Technical Data
PropertyTest MethodTest Result
Tensile Strength, MPaASTM D2671≥10.4
Elongation, %ASTM D2671≥300
Tensile Strength after aging, MPaUL 224, 158X168h≥7.3
Elongation after aging, %UL 224, 158X168h≥20
Dielectric strength(kV/mm)IEC 243≥15
Volume resistance Ω.cmIEC 93≥1X1014
Hot melt adhesive
PropertyTest methodTest Result
Water absorptionASTM D5700.2%
Softening pointASTM E2895
Peel strength(PE)ASTM 1000120N/25mm
Peel strength(PA)ASTM 100080N/25mm

Competitive Advantage:

1, From raw materials to final products, we perform intense quality checks to maintain our product quality:

A, Incoming material inspected by QC.

B, Manufacturing Process Control

C: Workers trained daily/weekly/monthly

D: Work instructions manual at each work station

E: 5S system implemented

F: Machine maintenance procedure

G: Quality Control and Final Inspection

The QC staff will check the material, process product

and final product according to the specification or test procedure.

2, Our R&D efforts center on reinforcing and developing element technologies

needed to support the future growth and success for customers and KINGTONE.

3, We know customers have urgent needs.

We are skilled at effective communication to interact with customers.

In order to provide prompt service, we can answer for you 7*24 hours.

4, We can Quickly and professionally answer for the inquire

5, More than 1000 kinds of cable, connectors and assembles can be produce and organized from us

6, Intime delivery

Product Tags:

heat shrink tube


adhesive lined heat shrink tubing

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