Yellow heat-shrink tube φ4 mm (VNCTU504)

VNCTU504 is a yellow heat-shrink tube, φ4 mm. Slide it over a joint, lug or wire end and heat it with a hot-air gun so it shrinks tightly – insulating, sealing against moisture and dust and securing the joint.

Yellow is commonly used to identify phases, circuit groups or special signal wires; wire numbers can be printed on it with a MAX LETATWIN printer using the heat-shrink ribbon (LM-IR50BP) when the size is within the printer's range.

Choose a size that slides easily over the lug before shrinking and grips the wire afterwards. Same range: VNCTU503, VNCTU506. Advice: +84 0917 399 279.

Product videos

Using heat-shrink tube

• Cut the tube 5 – 10 mm longer than the area to cover at each end.
• Slide it onto the wire before crimping or soldering.
• Heat evenly from the centre outwards, keeping the gun moving to avoid scorching.
• Let it cool before bending the wire.

Printing on heat-shrink

• Use the black BP ribbon LM-IR50BP on LM-550 printers and select heat-shrink tube on the printer.
• Print first, then shrink; text shrinks with the tube, so use a slightly larger character size.
• See the LM-550 heat-shrink loading video below.

Heat-shrink tubes at TOVINA

• VNCTU503 — yellow φ3 mm
• VNCTU504 — yellow φ4 mm
• VNCTU506 — yellow φ6 mm