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Description:
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.
Applications:
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) |
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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. |
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Specification | ||||||
Size |
As Supplied Inner diameter |
After Recovery (mm) |
Standard package (m/spool) |
|||
Inch | mm |
Internal Diameter (mm) |
Total wall thickness |
Wall thickness of adhesive layer |
Inner diameter |
|
1/16 | 1.6 | 1.6 | 0.8 | 0.60±0.15 | 0.3±0.1 | 200 |
3/32 | 2.4 | 2.4 | 1.2 | 0.70±0.15 | 0.35±0.1 | 200 |
1/8 | 3.2 | 3.2 | 1.6 | 0.70±0.15 | 0.35±0.1 | 200 |
3/16 | 4.8 | 4.8 | 2.4 | 0.80±0.15 | 0.4±0.1 | 100 |
1/4 | 6.4 | 6.4 | 3.2 | 0.80±0.15 | 0.4±0.1 | 100 |
5/16 | 7.9 | 7.9 | 3.9 | 0.90±0.15 | 0.45±0.1 | 100 |
3/8 | 9.5 | 9.5 | 4.8 | 0.90±0.15 | 0.45±0.1 | 1.22 |
1/2 | 12.7 | 12.7 | 6.4 | 0.95±0.20 | 0.45±0.1 | 1.22 |
5/8 | 15.9 | 15.9 | 7.9 | 0.95±0.20 | 0.45±0.1 | 1.22 |
3/4 | 19.1 | 19.1 | 9.5 | 1.0±0.20 | 0.45±0.1 | 1.22 |
1 | 25.4 | 25.4 | 12.7 | 1.1±0.20 | 0.50±0.1 | 1.22 |
1-1/4 | 31.8 | 31.8 | 15 | 1.15±0.20 | 0.50±0.1 | 1.22 |
1-1/2 | 38.1 | 38.1 | 19 | 1.25±0.20 | 0.50±0.1 | 1.22 |
1-3/4 | 44.5 | 44.5 | 22 | 1.35±0.20 | 0.55±0.1 | 1.22 |
2 | 50.8 | 50.8 | 25.4 | 1.5±0.25 | 0.60±0.1 | 1.22 |
Technical Data | ||||||
Property | Test Method | Test Result | ||||
Tensile Strength, MPa | ASTM D2671 | ≥10.4 | ||||
Elongation, % | ASTM D2671 | ≥300 | ||||
Tensile Strength after aging, MPa | UL 224, 158℃X168h | ≥7.3 | ||||
Elongation after aging, % | UL 224, 158℃X168h | ≥20 | ||||
Dielectric strength(kV/mm) | IEC 243 | ≥15 | ||||
Volume resistance Ω.cm | IEC 93 | ≥1X1014 | ||||
Hot melt adhesive | ||||||
Property | Test method | Test Result | ||||
Water absorption | ASTM D570 | ≦0.2% | ||||
Softening point | ASTM E28 | 95℃ | ||||
Peel strength(PE) | ASTM 1000 | 120N/25mm | ||||
Peel strength(PA) | ASTM 1000 | 80N/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