4:1 Heat Shrink Tubing Over-Expanded Flame Retardant Polyolefin Tubing

Specially Designed to Fit Oversized Components or Connectors

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4:1 Over-expanded Flexible Flame Retardant Polyolefin Tubing

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pass UL VW-1 Flame Test RoHS Compliant CSA

Low Price GuaranteeWhat'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
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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.

 

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.

View Measurement Conversion Chart

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.

PART # MINIMUM ID
BEFORE SHRINKING
MAXIMUM ID
AFTER SHRINKING
MINIMUM ID
AFTER SHRINKING
PRICE / FOOT
BLACK
HS4-050-FT-BK 0.470" 0.118" 0.043"
Qty:  
HS4-075-FT-BK 0.75" 0.188" 0.051"
Qty:  
HS4-100-FT-BK 0.945" 0.236" 0.059"
Qty:  
HS4-150-FT-BK 1.50" 0.374" 0.059"
Qty:  
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.

PART # MINIMUM ID
BEFORE SHRINKING
MAXIMUM ID
AFTER SHRINKING
NOMINAL ID
(Inside Diameter)
COLOR PRICE / FOOT
HS4A-0188-FT-BK 0.1575" 0.039" 0.0354" Black
Qty:  
HS4A-0313-FT-BK 0.3150" 0.079" 0.0354" Black
Qty:  
HS4A-050-FT-BK 0.4724" 0.118" 0.0512" Black
Qty:  
HS4A-075-FT       Black
Qty:  
HS4A-100-FT-BK 0.9449" 0.236" 0.0827" Black
Qty:  
HS4A-125-FT-BK 1.2598" 0.315" 0.0906" Black
Qty:  
HS4A-200-FT-BK 2.05" 0.512" 0.100" Black
Qty:  
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

 

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REVIEW SNAPSHOT®

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1 inch 4:1 Standard Wall HST per FT
 
4.0

(based on 1 review)

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4.0

Worked as advertised

By John the bat

from Chicago, IL

About Me Tech Savvy

Verified Buyer

Pros

  • Durable
  • Easy To Install
  • Fits Multiple Cable Sizes
  • Great Fit
  • Great Protection

Cons

    Best Uses

    • Organization

    Comments about 1 inch 4:1 Standard Wall HST per FT:

    Needed to fit over a 3/4" plug and shrink down to 1/4". It worked perfectly and dried hard.

    • Primary use:
    • Business

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