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About Heat-Shrink Tubing
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Tapered Heat-Shrink Tubing
Style A (After Shrinking)
Style B (After Shrinking)
Style C (After Shrinking)
- Material: Polyolefin Plastic
- Shrink Ratio: See Table
- Dielectric Strength: 200 V/mil
- Shrink Temperature: 250° F
- Temperature Range: -65° to 275° F
A different shrink ratio on each end allows this tubing to fit over cable assemblies and wire harnesses with large connections, or around connectors with a 90° elbow. An adhesive lining melts when the tubing is heated and bonds to the underlying surface, creating a water-resistant seal. The tubing length listed is after shrinking; the length before shrinking is 20-25% shorter.
Lipped tubing has a ridge on the inside of one opening for better retention than non-lipped tubing. It’s often used with grooved adapters—upon shrinking, the lip grips onto the groove.
Dielectric strength is the maximum voltage a material can handle before it starts to breakdown.
Tapered End | Non-Tapered End | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Style | ID Before Shrinking | Min. ID After Shrinking | Shrink Ratio | ID Before Shrinking | Min. ID After Shrinking | Shrink Ratio | Min. Wall Thick. After Shrinking | Color | End Style | Lg. | Each | |
| A | 0.97" | 0.21" | 4.6:1 | 0.97" | 0.38" | 2.6:1 | 0.05" | Black | Lipped | 1.5" | 0000000 | 000000 |
| A | 0.97" | 0.21" | 4.6:1 | 0.97" | 0.38" | 2.6:1 | 0.05" | Black | Non Lipped | 1.5" | 0000000 | 00000 |
| A | 1.12" | 0.26" | 4.3:1 | 1.12" | 0.56" | 2:1 | 0.04" | Black | Lipped | 2.2" | 0000000 | 00000 |
| A | 1.12" | 0.26" | 4.3:1 | 1.12" | 0.56" | 2:1 | 0.04" | Black | Non Lipped | 2.2" | 0000000 | 00000 |
| A | 1.22" | 0.29" | 4.2:1 | 1.22" | 0.7" | 1.7:1 | 0.07" | Black | Lipped | 2.6" | 0000000 | 00000 |
| A | 1.22" | 0.29" | 4.2:1 | 1.22" | 0.7" | 1.7:1 | 0.07" | Black | Non Lipped | 2.6" | 0000000 | 00000 |
| A | 1.42" | 0.34" | 4.2:1 | 1.42" | 0.84" | 1.7:1 | 0.07" | Black | Lipped | 2.9" | 0000000 | 00000 |
| A | 1.42" | 0.34" | 4.2:1 | 1.42" | 0.84" | 1.7:1 | 0.07" | Black | Non Lipped | 2.9" | 0000000 | 00000 |
| A | 1.68" | 0.37" | 4.5:1 | 1.68" | 1.07" | 1.6:1 | 0.08" | Black | Lipped | 3.9" | 0000000 | 00000 |
| A | 1.68" | 0.37" | 4.5:1 | 1.68" | 1.07" | 1.6:1 | 0.08" | Black | Non Lipped | 3.9" | 0000000 | 00000 |
| A | 2.04" | 0.63" | 3.2:1 | 2.04" | 1.36" | 1.5:1 | 0.13" | Black | Lipped | 5.1" | 0000000 | 00000 |
| A | 2.04" | 0.63" | 3.2:1 | 2.04" | 1.36" | 1.5:1 | 0.13" | Black | Non Lipped | 5.1" | 0000000 | 00000 |
| B | 0.63" | 0.34" | 1.4:1 | __ | __ | 1.1:1 | 0.07" | Black | Non Lipped | 3.5" | 0000000 | 00000 |
| C | 0.35" | 0.24" | 4:1 | __ | __ | 2.3:1 | 0.07" | Black | Non Lipped | 4" | 0000000 | 00000 |