Electrical Supplies > Heat Shrink > 3:1 Heat Shrink Tubing
3:1 Heat Shrink Tubing
Professional Grade Flexible Flame Retardant Polyolefin Tubing
Click to view 3:1 HST |
What's special about 3:1 Heat Shrink Tubing?
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Our 3:1 heat shrink tubing is an effective way to professionally finish the ends of a wire harness. The over-expanded product configuration easily fits over the end of a connector, and shrinks down to 33% of its original diameter to fit snugly over the wires. With our wide assortment of bright colors, now you can attractively color coordinate the ends of our expandable braided sleeving. Our tubing is available in rolls or by the foot.
3:1 Heat Shrink is ROHS (Restriction of Hazardous Substances) Compliant
Adhesive Lined Tubing
Our 3:1 heat shrink tubing is also available with a "dual-wall" construction. During application, the inner layer melts and flows, creating an adhesion layer to ensure a snug fit to your harness and/or connector.
It is recommended for applications that require a water-tight seal to protect wire, cable and connector components.
It can also be used for color coding, such as on industrial batteries where red & black are used as a protective strain relief and to identify the positive (red) connection or negative (black) connection.
- For 3:1 Heat Shrink Tubing, view Technical Specifications here
- For 3:1 Adhesive Heat Shrink Tubing, view Technical Specifications here
- For Military Specifications & Manufacturers' Cross Reference. Click here
- 3:1 Heat Shrink is ROHS Compliant
- For Instructions on how to use Heat Shrink Tubing. Click here
- Terminate the ends of your Braided Sleeving? Click here
- Not sure what size to use? Click here
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Available in Black, Gray, Clear, White, Red, Orange, Yellow, Green, Blue, Purple
Please note: * 1/4" 3:1 Tubing is only available in black, red and purple. * 1/2" 3:1 Tubing is not available in orange or green
* When ordering a product in a specific color, please keep in mind that your computer monitors’s resolution and color setting may have an effect on the colors of our product pictures. Because of this, the actual item may not be an exact match to what you see on your screen.
3:1 Heat Shrink - PER FOOT
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.
Price breaks will be reflected automatically in shopping cart
Normally our policy is to supply continuous lengths. If it is absolutely necessary to receive one continuous length, please specify.
How do we measure Heat Shrink? View here
3:1 Standard Wall - BULK
Clear, Black or White only
| PART # | BEFORE SHRINKING | AFTER SHRINKING | LENGTH | PRICE / SPOOL |
| HS3-0125SP500 | 1/8" | 0.039" | 500' | $124.75 ![]() |
| HS3-0188SP250 | 3/16" | 0.059" | 250' | $87.50 ![]() |
| HS3-025SP250 | 1/4" | 0.078" | 250' | $99.99 ![]() |
| HS3-0375SP200 | 3/8" | .125" | 200' | $99.99 ![]() |
| HS3-050SP200 | 1/2" | .167" | 200' | $116.75 ![]() |
| HS3-075SP200 | 3/4" | .250" | 200' | $150.99 ![]() |
| HS3-100SP100 | 1" | .375" | 100' | $110.75 ![]() |
| HS3-150SP100 | 1 1/2" | .500" | 100' | $220.99 ![]() |
| 3:1 Heat Shrink - Technical Specifications. click here For military specifications and a manufacturers' cross reference, click here |
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Dual Wall 3:1 - PER FOOT
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.
The longest continuous length available is 4 ft.
| PART # | BEFORE SHRINKING | AFTER SHRINKING | COLOR | PRICE / FOOT |
| HS3A-0125FT | 1/8 in. | .04 in. | Clear, Black and Red | $1.17 ![]() |
| HS3A-025FT | 1/4 in. | .08 in. | Black, Red, Green | $1.50 ![]() |
| HS3A-0375FT | 3/8 in. | .125 in. | Yellow, White, Black, Red, Clear, Blue | $2.50 ![]() |
| HS3A-050FT | 1/2 in. | .167 in. | Yellow, Black, Red, Clear, Blue, Green | $3.00 ![]() |
| HS3A-075FT | 3/4 in. | .250 in. | Yellow, Black, Red, Clear, Blue | $3.50 ![]() |
| HS3A-100FT | 1 in. | .375 in. | Yellow, Black, Red, Clear, Blue | $6.00 ![]() |
| HS3A-150FT | 1 1/2 in. | .500 in. | Black, Clear, Red | $12.00 ![]() |
Dual Wall 3:1 - CUT PIECES
Please Note: Our Diameters for Heat Shrink Tubing are measured as ROUND TUBE, NOT FLAT
Custom Sizes and Cut Pieces are NON-RETURNABLE and NON-REFUNDABLE
| PART # | BEFORE SHRINKING | AFTER SHRINKING | LENGTH / PIECE | PIECES / PACK | COLOR | PRICE / PACK |
| HS3A-0125PCS | 1/8 in. | .04 in. | 6 in. | 8 | Black | $4.00 ![]() |
| HS3A-025PCS | 1/4 in. | .08 in. | 6 in. | 8 | Black | $5.00 ![]() |
| HS3A-0375PCS | 3/8 in. | .125 in. | 6 in. | 6 | Black | $6.00 ![]() |
| HS3A-050PCS | 1/2 in. | .167 in. | 6 in. | 6 | Black | $6.50 ![]() |
| HS3A-075PCS | 3/4 in. | .250 in. | 6 in. | 4 | Black | $7.00 ![]() |
| HS3A-100PCS | 1 in. | .333 in. | 6 in. | 3 | Black | $7.75 ![]() |
| HS3A-150PCS | 1 1/2 in. | .500 in. | 6 in. | 2 | Black | $8.00 ![]() |
Normally our policy is to supply continuous lengths. If it is absolutely necessary to receive one continuous length, please specify.
ARTICLES - A place to find educational articles covering a wide range of topics, all categorized according to your areas of interest. Learn more
HOW-TO CORNER -
Instructions on how to use Heat Shrink Tubing. Click here
Terminate the ends of your Braided Sleeving? Click here
How do we measure Heat Shrink? View here
CATALOG - PDF
For your convenience, we have made our brochure and catalogs available online in PDF format. Downloading the PDF catalog will take you no more than 5 minutes, so you won’t have to wait days for the print catalog. PDF catalogs include links to our products: just click on the hyperlinked product headings, and you’ll be directed right to our website.
Office
PDF Catalog 2 MB
Automotive
PDF Catalog 2.6 MB
Aerospace/Aircraft
PDF Catalog 2 MB
Utilities & Energy
PDF Catalog 3.7 MB
Datacom/Telecom
PDF Catalog 5.7 MB










