Heat Shrink Tube ORNO OR-KT-13220/B Ø13 mm 1 m, black, blister pack

ORNO heat shrink tube OR-KT-13220/B is a black thermal insulating sleeve with a nominal diameter of 13 mm and a length of 1 m, supplied in a blister pack. It is intended for electrical insulation, repair and protection of cables and connectors where a close-fitting, moisture-resistant jacket is required. The product is compatible with common cable materials and shrinks when heated to form a protective barrier that improves mechanical strength and environmental resistance.

Advantages

The heat shrink tube provides reliable electrical insulation and abrasion resistance in a compact, easy-to-store form. Its 13 mm initial diameter and uniform wall allow it to accommodate individual conductors, splices or small cable bundles and to create strain relief at connection points. The black color offers discreet appearance and additional UV resistance in typical indoor and light commercial environments. Supplied in a blister pack, the sleeve is protected from contamination and is simple to handle during installation.

Suitable for

• Insulating wire splices and soldered joints
• Protecting connectors and terminals from abrasion and moisture
• Providing strain relief on cable entries and junctions
• Repairing damaged outer insulation on individual wires and small bundles

Key specifications

• Material: heat-shrinkable polymer suitable for electrical insulation
• Initial outer diameter: 13 mm
• Length: 1 m
• Color: black
• Package: blister pack for single-piece retail display and protection
• Typical properties: moisture resistance, abrasion resistance, electrical insulating behavior

How to use

Select an appropriately sized section of the heat shrink tube so that, when positioned over the cable or joint, it will shrink tightly around the components. Slide the tube into place before making permanent connections where possible. Apply uniform heat using a heat gun or other controlled heat source, moving evenly along the length until the tubing has fully contracted and conforms to the shape beneath. Allow the assembly to cool before handling to ensure a secure fit and full recovery of insulating properties.

Usage recommendations

For consistent results, use a regulated heat gun set to an appropriate temperature for polymer heat-shrink materials and maintain even motion to avoid local overheating. Verify compatibility with cable insulation and any nearby components before application. For outdoor or heavy-duty use, consider additional sealing or protective measures appropriate for the environment.