3M 2:1 Ratio Heat Shrink Tubing
A Flexible, General Purpose Tubing
What's special about this 2:1 3m heat shrinkable tubing?
- Shrinks to 1/2 of its original size, making it perfect for irregular shapes or large connectors
- Many different colors available for color coding wires
- Great for insulation to prevent shorts or other dangerous conditions
- Click for More Features


3M offers their 2:1 heat shrink tubing in a variety of sizes, as well as many different colors. Colored 3M heat shrink tubes are perfect for insulating electrical splices and terminations, as well as harnessing wires, wire marking, and providing cables with a fire resistant covering. You will find the 3M 2:1 heat shrink you need for any job.
- Made from flame retardant polyolefin to last for many years
- Many different sizes available for use in many different applications, including color-coding wires or protecting damaged cords
- Only available in 25, 50 or 100 ft spools, for individual lengths please click here
- Minimum shrinking temperature is 194° F (90°C); a heat gun is required
- Highly resistant to chemicals and oils, to keep your cables or wires safe from corrosion
- Made by 3M for a better quality product
- UL E35506, MIL-DTL-23053/5, CSA LR31929
Mil Specs | MIL-DTL-23053/5 Class 1 (colors) Class 2 (Clear) |
---|---|
UL | E35506 (except Clear) 600V 125°C (257°F) |
CSA | LR31929 (except Clear) 600V 125°C (257°F) |
Material | Polyolefin |
Recover temp. | 121°C (250°F) |
Dielectric Strength | 900 Volts/mil |
Continuous Oper. Temp. | -55°C to 135°C (-67°F to 275°F) |
Flammability | Self-extinguish UL 224 (except Clear) |
Size | Recovered ID | Recovered Wall Thickness |
3/64" (0.0469) | 0.023" | 0.016" |
1/16" (0.0625) | 0.031" | 0.017" |
3/32" (0.0934) | 0.046" | 0.020" |
1/8" (0.125) | 0.062" | 0.020" |
3.16" (0.188) | 0.093" | 0.020" |
1/4" (0.25) | 0.125" | 0.025" |
3/8" (0.375) | 0.187" | 0.025" |
1/2" (0.50) | 0.250" | 0.025" |
3/4" (0.75) | 0.375" | 0.030" |
1" | 0.500" | 0.035" |
MANUALS & USER GUIDES -
- MSDS 2:1 Heat Shrink 3M FP301 Black Series (PDF)
- MSDS 2:1 Heat Shrink 3M FP301 Clear Series (PDF)
- MSDS 2:1 Heat Shrink 3M FP301 Colored Series (PDF)
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HOW-TO CORNER -

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Reviewed by 1 customer
Displaying review 1
Pros
- Strong
- Tidy
Cons
Best Uses
- Custom wiring jobs
Comments about National Standard Parts Associates Inc 3M 2:1 Heat Shrink Tubing 0.0469 In. 25 Ft. Spool - Black:
It gives our wiring harness a professional look and protects the leads. I would definatly purchase again.
Displaying review 1