What's special about this 4:1 Heat Shrink Tubing?
- Shrinks down to 25% of its original diameter; also shrinks 14% or less in its axial direction (lengthwise)
- Available in Standard Wall and Dual Wall (Adhesive Lined) styles
- Dual Wall tubing creates a watertight seal to protect wire, cable and connector components
- Sold by the foot, so you don't have to purchase more than you need
- Available in Black
- Click for More Features
Our 4:1 over-expanded polyolefin heat shrink tubing is flexible, flame-retardant and used for specialty applications that include cable jacket retrofitting and repair, as well as the electrical insulation of wire assemblies with oversize components or connectors. The over-expanded product fits easily over the end of a connector, and shrinks down to 25% of its original diameter to fit snugly over both the connector and any narrower attached wires. Available in Black, and sold by the foot.
Adhesive-Lined Heat Shrink
The adhesive version of our 4:1 heat shrink features “dual-wall” design, which is made up of an outer polyolefin (heat shrink) tube lined with an interior coating of heat-activated adhesive. During application, as the outer tubing shrinks, the inner layer melts, flows, and then resets when cooled, helping the tubing to achieve a snug, moisture-resistant fit around wire harnesses, cables and connectors. We recommend it for applications that require strain relief and watertight seals.
- Due to the nature of heat shrink, it shrinks lengthwise as well as in diameter. 4:1 heat shrink will shrink 14% or less in the axial direction during the shrink process.
- 4:1 Heat Shrink is RoHS Compliant, view the certificate here (PDF)
- View Military Specifications and Manufacturers' Cross Reference
|Tensile Strength (psi)||ASTM D 638||1500 min.|
|Elongation (%)||ASTM D 638||200 min.|
|Specific Gravity||ASTM D 792||1.35 max.|
|Low Temperature Flexibility -55°C||MIL-DTL-23053||no cracking|
|Heat Shock 4 hours at 250°C||MIL-DTL-23053||no cracking|
|Heat Resistance (175°C, 168 hrs.)
|ASTM D638||100 min.|
|Secant Modulus (psi)||ASTM D 882||2.5 x 10,000 max.|
|Longitudinal Change (%)||MIL-DTL-23053||±5|
|Dielectric Strength||ASTM D 876||500 min.|
|Volume Resistivity||ASTM D 876||1.0 x 10,000 min.|
|Corrosion (175°C, 16hrs)||MIL-DTL-23053||no corrosion|
|Water Absorption (%)||ASTM D 570||0.5 max.|
|Fluid Resistance (23°C, 24 hrs.)
Tensile Strength (psi)
|Flammability||UL 224 VW-1||
|Shrink Temperature, Nominal||--||90°C|
|Application (Typical)||General Purpose Over Expanded|
|Continuous Operating Temperature||-55 to 135°C|
|UL Rating & File No. (Subject 224)||125°C, 600V
VW-1 (Jacket only for dual wall)
|UL Catalog No.||826 Suffix 3X|
MIL-I-23053/5 Class 1 and Class 3. MIL-R-46846, Type V
UL 224 125°C, 600 V, VW-1 File E48762 YDPU2
LG heat shrinkable and non-shrinkable tubing products do not contain the compound Di (2-ethylhexyl) phthalate commonly referred to as DEHP.
In addition, LG heat shrinkable and non-shrinkable tubing products do not contain PFOS (perfluoroctane sulfonate), PFOA (perfluorocanoic acid) or Tinuvin 320.
4:1 Adhesive Heat Shrink Tubing
Minimum Shrink Temperature: 90°C
|MINIMUM ID||MAXIMUM ID||MINIMUM TOTAL WALL THICKNESS
|MINIMUM WALL THICKNESS
*Metric sizes available for special orders.
Limiting Oxygen Index (LOI)
The ratio of how much oxygen - as compared to other gases - needs to be present in the air surrounding a particular material in order for that material to burn. The fact that Earth's normal atmospheric air contains around 21% oxygen is used a reference point when materials are classified into burn categories that are based on Limiting Oxygen Index. Substances that are combustible in air containing less than 21% oxygen are considered flammable, while those that burn in the range of anything greater than 21% but less than 28% are typically labeled "slow burning". Any material with an LOI that exceeds 28% is classified as self-extinguishing.
In the table below, you'll find a list of polymers commonly found in our heat shrink tubing and braided sleeving products, along with their LOIs and the burn categories each falls into.
|ECTFE (Ethylene chlorotrifluoroethylene)||Halar||64%||Self Extinguishing|
|Nylon 6:6||N/A||Ranges fron 24-29%||Slow Burning to Self Extinguishing|
|PET (Polyethylene Terephthalate)||Mylar (film), Dacron (fiber)||Ranges from 21-34%||Slow Burning to Self Extinguishing|
|Polypropylene (PP)||polythene (in the UK)||17%||Flammable|
|Polytetrafluoroethylene (PTFE)||Teflon||95%||Self Extinguishing|
|Polyvinyl Chloride (PVC)||N/A||Ranges from 45-49%||Self Extinguishing|
ARTICLES - A place to find educational articles covering a wide range of topics, all categorized according to your areas of interest. Learn more
- Heat Shrink Tubing: How It Was Invented, and Why We Use It
- The Handyman's Guide to Improvisation: 7 New Ways to Use Heat Shrink Tubing
HOW-TO CORNER -
- How to use Heat Shrink Tubing
- Terminate the ends of your Braided Sleeving with Heat Shrink
- How do we measure Heat Shrink?
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Reviewed by 1 customer
Displaying review 1
- Easy To Set Up
- Easy To Use
- Low Power Consumption
- Quality Construction
I'm very big into do-it-yourself projects and am convinced that if I want to get anything done there is a way to do it myself! I came across this tubing when I was looking for a watertight seal to protect cables and wires. It was perfect, and the best part was that it is sold by the foot so I could buy what I need without having a huge amount left over! That being said, I may be buying more soon.
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