Home > Heat Shrink > 4:1 Heat Shrink Tubing
4:1 Heat Shrink Tubing
Over-Expanded Flame Retardant Polyolefin Tubing
Specially Designed to Fit Oversized Components or Connectors
 
4:1 Over-expanded Flexible Flame Retardant Polyolefin Tubing
This requires one or more of the following: javascript enabled, Flash Video Player, and Quicktime or Windows Media Player
|
What's special about this 4:1 Heat Shrink Tubing?
|
Sold by the foot, so you don't have to purchase more than you need
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 a 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
- View Military Specifications and Manufacturers' Cross Reference
PROPRIETARY |
TEST METHOD |
TYPICAL VALUE |
| Physical | ||
| 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.) Elongation (%) |
ASTM D638 | 100 min. |
| Secant Modulus (psi) | ASTM D 882 | 2.5 x 10,000 max. |
| Longitudinal Change (%) | MIL-DTL-23053 | ±5 |
| Electrical | ||
| Dielectric Strength | ASTM D 876 | 500 min. |
| Volume Resistivity | ASTM D 876 | 1.0 x 10,000 min. |
| Chemical | ||
| 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) |
MIL-I-23053 | 1000 min. |
| Flammability | UL 224 VW-1 | pass |
| Shrink Temperature, Nominal | -- | 90°C |
| Application (Typical) | General Purpose Over Expanded |
|---|---|
| Recovery Temperature | 90°C |
| Flame Retardant | YES |
| Continuous Operating Temperature | -55 to 135°C |
| Flexibility | Excellent |
| Abrasion Resistance | Good |
| Solvent Resistance | Good |
| Standard Colors | Black |
| UL Rating & File No. (Subject 224) | 125°C, 600V VW-1 (Jacket only for dual wall) E48762 |
| UL Catalog No. | 826 Suffix 3X |
Specification reference:
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
Product Dimensions
| SIZE (In.) |
EXPANDED | RECOVERED | ||||||
| MINIMUM ID | MAXIMUM ID | MINIMUM TOTAL WALL THICKNESS (TOTAL WALL) |
MINIMUM WALL THICKNESS (ADHESIVE WALL) |
|||||
| In. | mm | In. | mm | In. | mm | In. | mm | |
| 3/16" | 0.1575 | 4 | 0.039 | 1.0 | 0.0354 | 0.90 | 0.0197 | 0.50 |
| 5/16" | 0.3150 | 8 | 0.079 | 2.0 | 0.0354 | 0.90 | 0.0197 | 0.50 |
| 1/2" | 0.4724 | 12 | 0.118 | 3.0 | 0.0512 | 1.30 | 0.0236 | 0.60 |
| 3/4" | 0.6300 | 16 | 0.157 | 4.0 | 0.0630 | 1.60 | 0.0300 | 0.76 |
| 1" | 0.9449 | 24 | 0.236 | 6.0 | 0.0827 | 2.10 | 0.0311 | 0.79 |
| 1-1/4" | 1.2598 | 32 | 0.315 | 8.0 | 0.0906 | 2.30 | 0.0409 | 0.90 |
| 2" | 2.0472 | 52 | 0.5118 | 13.0 | 0.0984 | 2.50 | 0.0409 | 0.90 |
| 3" | 2.9921 | 76 | 0.7480 | 19.0 | 0.0984 | 2.50 | - | - |
| 4" | 4.0157 | 102 | 1.3385 | 34.0 | 0.1062 | 2.70 | - | - |
*Metric sizes available for special orders.
STANDARD WALL
Please Note: Our Diameters for Heat Shrink Tubing are measured as ROUND TUBE, NOT FLAT
Due to the nature of the materials, all braided sleeving, wire loom, heat shrink, and spiral wrap products sold by the foot will not be refunded IN FULL if they are cut up in sections of 20' or shorter. 50% restocking fee on returns of 20 feet or less. 25% restocking fee if there is a reorder.
| NOMINAL ID | MINIMUM ID BEFORE SHRINKING |
MAXIMUM ID AFTER SHRINKING |
MINIMUM ID AFTER SHRINKING |
PART # per FOOT | PRICE / FOOT BLACK |
| 1/2" | 0.470" | 0.118" | 0.043" | HS4-050-FT-BK | |
| 3/4" | 0.75" | 0.188" | 0.051" | HS4-075-FT-BK | |
| 1" | 0.945" | 0.236" | 0.059" | HS4-100-FT-BK | |
| 1-1/2" | 1.50" | 0.374" | 0.059" | HS4-150-FT-BK | |
| 4:1 Heat Shrink Technical Specifications, click here For Military Specifications and Manufacturers' Cross Reference, click here |
|||||
Normally our policy is to supply continuous lengths. If it is absolutely necessary to receive one continuous length, please specify.
Dual Wall
Please Note: Our Diameters for Heat Shrink Tubing are measured as ROUND TUBE, NOT FLAT
Due to the nature of the materials, all braided sleeving, wire loom, heat shrink, and spiral wrap products sold by the foot will not be refunded IN FULL if they are cut up in sections of 20' or shorter. 50% restocking fee on returns of 20 feet or less. 25% restocking fee if there is a reorder.
| NOMINAL ID | MINIMUM ID BEFORE SHRINKING |
MAXIMUM ID AFTER SHRINKING |
NOMINAL ID (Inside Diameter) |
PART # | COLOR | PRICE / FOOT |
| 3/16" | 0.1575" | 0.039" | 0.0354" | HS4A-0188-FT-BK | Black | Currently Backordered |
| 1/2" | 0.4724" | 0.118" | 0.0512" | HS4A-050-FT-BK | Black | |
| 1" | 0.9449" | 0.236" | 0.0827" | HS4A-100-FT-BK | Black | |
| 1-1/4" | 1.2598" | 0.315" | 0.0906" | HS4A-125-FT-BK | Black | |
| 2" | 2.05" | 0.512" | 0.100" | HS4A-200-FT-BK | Black | |
| 4 foot sections are the maximum on Dual Wall and Specialty Tubing Click here for 4:1 Adhesive Lined Tubing (Dual Wall) specifications |
||||||
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.
| MATERIAL | ALTERNATE NAME | LOI | CATEGORY |
| ECTFE (Ethylene chlorotrifluoroethylene) | Halar | 64% | Self Extinguishing |
| Nomex | N/A | 28% | Slow Burning |
| 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 |
| Polyethylene (PE) | N/A | 17% | Flammable |
| 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?
 2:1 Heat Shrink Tubing KitPrice $10.99 2:1 Standard Wall From $0.50 per foot 2:1 Dual Wall Call for pricing Cheap 2:1 Heat Shrink From $11.00 for 50ft spool of 3/64" |
 3:1 Standard WallFrom $0.53 per foot 3:1 Adhesive From $1.17 per foot Cheap 3:1 Heat Shrink From $14.40 per spool |
 4:1 Standard WallFrom $2.75 per foot 4:1 Adhesive From $0.95 per foot Our 4:1 heat shrink tubing is used for jacket retrofitting or repair and electrical insulation of wire assemblies with oversize components or connectors. |
Standard 6:1 Heat Shrink |
2:1 Neoprene Heat Shrink Tubing 2:1 Diesel Resistant Heat Shrink Tubing |
 Heat Shrink UV ReactiveFrom $1.00 per foot It is available in a 2:1 shrink ratio and in Luminous, Neon Pink, Neon Yellow, Neon Green, Luminous Green, and Gold.
|
 Heat Shrink End CapsFrom $0.70 Secure the ends of the tubing with these caps available in black in all three sizes.
|
 Conductive Heat Shrink ConnectorsFrom $3.99 per foot They are entirely coated on their inner surface providing shielding around the joints being connected.
|
 Heat Shrink Tools/ Heat GunsFrom $29.99 We offer a range of options to shrink your tubing, from small torches to ovens. |
|
High Temperature (Fluoropolymer) Heat Shrink Tubing |
|
 Fluorinated Ethylene-Propylene (FEP) Heat Shrink TubingFrom $2.34 per foot FEP is used in cases where temperatures are not as extreme, and very high shrink ratios are not necessary.
|
 Polytetrafluoroethylene (PTFE)
Heat Shrink TubingFrom $4.86 per foot PTFE is widely used in military applications because of its high continuous use temperature and outstanding chemical resistance.
|
 Polyvinylidene Fluoride (PVDF, Kynar®) Heat Shrink TubingFrom $5.49 per 4 FT PVDF is used in applications where continuous operating temperatures are 150-175°C. It is used where outstanding abrasion and cut-through resistance are required.
|
PTFE/FEP Dual Wall Heat Shrink Tubing From $2.97 per FT Constructed with an outer layer of heat shrinkable PTFE and an inner layer of FEP, it is easy to apply & is designed to provide a tight, moisture-proof bond.
|
Cheap 6:1 Heat Shrink