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Heat-Shrink End Caps
- Material: Polyolefin Plastic
- Shrink Ratio: See Table
- Shrink Temperature: 250° F
- Temperature Range: -65° to 230° F
Seal the end of crimped connections, such as motor coils, to insulate and protect them from moisture and abrasion. These caps have an adhesive lining that melts when the cap is heated and bonds to the underlying surface, creating a water-resistant seal. You can also use them to seal the ends of pipes and wire rope.
Caps with a pressure-relief valve let you monitor pressure changes and release gases that build up due to changes in temperature and humidity.
For technical drawings and 3-D models, click on a part number.
ID | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Before Shrinking | Min. After Shrinking | Min. Wall Thick. After Shrinking | Min. Lg. After Shrinking | Shrink Ratio | Flexibility | Color | Specifications Met | Each | |
End Caps | |||||||||
| 0.13" | 0.02" | 0.05" | 0.87" | 6:1 | Rigid | Black | UL Recognized Component | 00000000 | 00000 |
| 0.25" | 0.08" | 0.08" | 1.12" | 3:1 | Rigid | Black | UL Recognized Component | 00000000 | 000 |
| 0.38" | 0.09" | 0.08" | 1.25" | 4:1 | Rigid | Black | UL Recognized Component | 00000000 | 0000 |
| 0.39" | 0.16" | 0.08" | 1.32" | 2.5:1 | Rigid | Black | __ | 00000000 | 0000 |
| 0.47" | 0.16" | 0.08" | 1.5" | 3:1 | Rigid | Black | __ | 0000000 | 0000 |
| 0.5" | 0.09" | 0.1" | 1.5" | 5:1 | Rigid | Black | UL Recognized Component | 00000000 | 0000 |
| 0.55" | 0.2" | 0.09" | 1.75" | 3:1 | Rigid | Black | __ | 0000000 | 0000 |
| 0.79" | 0.3" | 0.09" | 2.18" | 2.5:1 | Rigid | Black | __ | 00000000 | 0000 |
| 0.98" | 0.33" | 0.11" | 2.5" | 3:1 | Rigid | Black | __ | 0000000 | 0000 |
| 1.38" | 0.63" | 0.13" | 3.25" | 2:1 | Rigid | Black | __ | 0000000 | 0000 |
| 1.57" | 0.59" | 0.12" | 3.54" | 2.5:1 | Rigid | Black | __ | 00000000 | 0000 |
| 2.17" | 1.02" | 0.14" | 4" | 2:1 | Rigid | Black | __ | 0000000 | 0000 |
| 2.48" | 0.98" | 0.13" | 5.63" | 2.5:1 | Rigid | Black | __ | 00000000 | 00000 |
| 2.95" | 1.42" | 0.16" | 4.75" | 2:1 | Rigid | Black | __ | 0000000 | 0000 |
| 2.99" | 1.18" | 0.16" | 6.22" | 2.5:1 | Rigid | Black | __ | 00000000 | 00000 |
| 3.94" | 1.77" | 0.16" | 6.4" | 2:1 | Rigid | Black | __ | 00000000 | 00000 |
| 3.94" | 2.05" | 0.16" | 5.5" | 2:1 | Rigid | Black | __ | 0000000 | 0000 |
| 4.72" | 2.36" | 0.16" | 6" | 2:1 | Rigid | Black | __ | 0000000 | 00000 |
| 6.3" | 3.23" | 0.16" | 6" | 2:1 | Rigid | Black | __ | 0000000 | 00000 |
End Caps with Pressure Relief Valve | |||||||||
| 1" | 0.31" | 0.09" | 2.76" | 3:1 | Semi-Rigid | Black | __ | 000000000 | 0000 |
| 1.56" | 0.59" | 0.12" | 3.35" | 3:1 | Semi-Rigid | Black | __ | 000000000 | 0000 |
| 2.17" | 1" | 0.13" | 4.33" | 2:1 | Semi-Rigid | Black | __ | 000000000 | 00000 |
No-Heat Shrink End Caps
- Material: EPDM Rubber
- Shrink Ratio: See Table
- Temperature Range: -40° to 220° F
With a spiral-wound core, these end caps form a permanent seal on the end of your crimped wire or cable without heat or tools. Slide them on, pull out the core, and they conform to the end of your connection, creating a seal that insulates and protects against water, dust, and abrasion. You may also know them as cold-shrink tubing end caps. They’re sometimes even used to seal the ends of pipes and wire rope.
Made of EPDM, these caps won’t become brittle from ozone or chemicals such as acids and alkalies. They also won’t fade in the sun.
For technical drawings and 3-D models, click on a part number.
ID | ||||||||
|---|---|---|---|---|---|---|---|---|
| Before Shrinking | Min. After Shrinking | Min. Wall Thick. After Shrinking | Min. Lg. After Shrinking | Shrink Ratio | Color | Specifications Met | Each | |
| 0.82" | 0.46" | 0.18" | 2.38" | 2:1 | Black | ANSI C119.1 | 0000000 | 000000 |
| 1.12" | 0.63" | 0.18" | 2.84" | 2:1 | Black | ANSI C119.1 | 0000000 | 00000 |
| 1.94" | 1.02" | 0.14" | 3.24" | 2:1 | Black | ANSI C119.1 | 0000000 | 00000 |
| 3.32" | 1.79" | 0.14" | 3.95" | 2:1 | Black | ANSI C119.1 | 0000000 | 00000 |
Heat-Shrink Round Caps
Permanently seal pipe, tubing, conduit, and even crimped electrical connections. Slide these flexible caps on and use a heat gun to tightly shrink them to the shape of whatever they are covering. Their outer surface shrinks while the inner wall flows into voids to create a sealed connection.
For technical drawings and 3-D models, click on a part number.
| For OD | ID Before Shrinking | Min. ID After Shrinking | Inside Ht. | Shrink Temp., °F | Color | Each | |
Flexible Polyolefin Plastic | |||||||
|---|---|---|---|---|---|---|---|
| 1/4"-1/2" | 0.55" | 0.2" | 1 3/4" | 250° | Black | 0000000 | 00000 |
| 21/32"-1 3/8" | 1.38" | 0.63" | 3 1/4" | 250° | Black | 0000000 | 0000 |
| 1 1/32"-2 5/32" | 2.17" | 1.02" | 4" | 250° | Black | 0000000 | 0000 |
| 1 7/16"-2 15/16" | 2.95" | 1.42" | 4 3/4" | 250° | Black | 0000000 | 0000 |