600PCS 4:1 Heat Shrink Tubing Kit

Use this assortment to seal cable joints, insulate repaired conductors, protect terminal transitions, and add strain relief where one supplied diameter must recover over an uneven profile. For more diameter and length options, browse the heat shrink tubing collection.

Select a supplied diameter that slides over the widest part of the wire, splice, or terminal before heating. Confirm that its recovered diameter will grip the finished joint. Choose the 600PCS color option required for the project, or the 550PCS clear option when the connection must remain visible. For continuous coverage rather than assorted short pieces, compare the 65Ft 1/4 Inch Heat Shrink Tubing Roll.

1. Disconnect power and clean the area to be covered.
2. Slide the selected tubing over the wire before completing the splice or terminal connection.
3. Center the tubing over the finished joint.
4. Apply controlled heat while rotating the workpiece so recovery is even.
5. Stop when the tubing has fully recovered and the adhesive forms a continuous seal, then allow it to cool before handling.

Use a controlled-temperature tool such as the Digital Heat Gun for Heat Shrink Tubing; do not use an open flame.

Are all options in this kit 600PCS?

No. The black & red, black, white, and red options contain 600 pieces. The clear option contains 550 pieces.

What does a 4:1 shrink ratio mean?

It means the tubing can recover to approximately one quarter of its supplied diameter when used within its rated size range.

Is this tubing adhesive lined?

Yes. The dual-wall tubing uses heat-activated adhesive to help seal the joint and support strain relief.