HSMB24BLUE Partex 2:1 heat shrink tubing, 2.4/1.2mm, blue, pack 15m

Why Choose the Partex HSMB24BLUE 2:1 Blue Heat Shrink Tubing?

The Partex HSMB24BLUE is a versatile, small-diameter blue heat shrink tubing designed for electrical insulation, wire protection, conductor identification and professional cable management. Featuring a 2:1 shrink ratio, this tubing reduces from a nominal supplied internal diameter of 2.4 mm to 1.2 mm when fully recovered, providing a close-fitting protective sleeve around appropriately sized electrical conductors, cable connections and components.

Manufactured by Partex, a specialist in cable identification and electrical installation products, the HSMB24BLUE offers a practical solution for electrical contractors, electronics technicians, control panel builders and industrial maintenance professionals. Its distinctive blue finish supports organised cable identification and can be particularly useful in installations where blue is specified for neutral conductor identification under applicable UK and European harmonised wiring conventions.

Supplied in a convenient 15 m pack, the Partex HSMB24BLUE provides a useful quantity of heat shrink sleeving for repeated installation and repair tasks. The 2.4 mm supplied internal diameter makes it particularly suitable for small electrical wires and compact cable assemblies, while the 1.2 mm nominal recovered diameter allows the tubing to contract around suitably sized components.

The combination of a compact diameter, controlled shrink ratio and blue colour makes the HSMB24BLUE a practical choice for electrical and electronic assemblies requiring both protective insulation and clear visual identification.

Key Advantages

• 2:1 heat shrink ratio provides controlled diameter reduction for a close fit around appropriately sized wires and components.
• 2.4 mm supplied internal diameter reducing to approximately 1.2 mm when fully recovered.
• Small-diameter design makes it suitable for fine electrical wires, compact connections and precision wiring applications.
• Blue colour supports clear conductor identification and organised wiring systems.
• 15 m pack offers a practical quantity for electrical installation, manufacturing and maintenance work.
• Helps provide electrical insulation and mechanical protection when appropriately specified for the application.
• Protective sleeving helps reduce exposure to abrasion and everyday mechanical wear.
• Can be cut to the required length for individual wire insulation, cable protection and identification tasks.

Key Features

• Partex HSMB24BLUE heat shrink tubing.
• 2:1 nominal shrink ratio.
• 2.4 mm supplied internal diameter.
• 1.2 mm nominal recovered internal diameter.
• Blue colour for conductor identification and professional wiring applications.
• 15 m pack quantity for electrical installation and maintenance requirements.
• Small-diameter tubing suitable for appropriately sized electrical conductors.
• Heat-activated shrinking for a close-fitting protective covering.
• Can be cut to length for individual installation requirements.
• Suitable for electronic equipment, instrumentation, control panels and small cable assemblies.

Reliable Electrical Insulation and Small-Diameter Cable Protection

Heat shrink tubing is widely used in electrical and electronic installations to provide protective sleeving around conductors, wire connections and electrical components. When suitable heat is applied, the tubing contracts around the underlying component, creating a close-fitting covering that can help protect against abrasion and provide additional electrical insulation where the product is appropriately specified.

The Partex HSMB24BLUE combines a practical 2:1 shrink ratio with a compact 2.4 mm supplied internal diameter. This makes it particularly useful for applications involving small electrical conductors, compact wiring assemblies and components where larger heat shrink tubing would be unsuitable. Once heated, the tubing contracts towards its nominal recovered internal diameter of 1.2 mm.

The small diameter allows installers to apply protective sleeving to individual wires while maintaining a tidy and compact wiring arrangement. This can be especially beneficial in electronic equipment, instrumentation systems, industrial control panels and electrical assemblies where space is limited and careful cable management is important.

The blue colour provides an additional identification benefit. In UK and European harmonised electrical wiring systems, blue is the recognised colour for neutral conductors. Blue heat shrink tubing can therefore support appropriate neutral conductor identification when installed in accordance with applicable electrical standards and the requirements of the specific installation.

For equipment wiring, instrumentation and specialist control systems, blue sleeving may also form part of a documented cable identification scheme. However, it should not be applied in a way that incorrectly identifies the electrical function of a conductor. Where blue denotes neutral, avoid using it to identify line, protective earth or mixed-function conductor groups.

For effective installation, select tubing with a supplied internal diameter large enough to pass over the intended wire, connector or component and a recovered diameter suitable for achieving the required fit. Cut the tubing to the required length, position it over the area requiring protection and apply controlled, even heat using an appropriate heat gun.

Follow the manufacturer's installation recommendations and avoid excessive heating of the tubing or underlying cable insulation. Particular care should be taken when working with fine wires, sensitive electronic components and closely spaced connections.

Where waterproofing, adhesive bonding or a specified environmental seal is required, select a product with the relevant verified properties. The HSMB24BLUE should not be assumed to provide adhesive sealing or a particular waterproof rating without confirmation from the manufacturer's technical documentation.

Typical Applications

• Electrical insulation of small wires and conductors.
• Protective sleeving for small-diameter electrical cables.
• Blue colour identification of suitable electrical conductors.
• Neutral conductor identification where permitted by applicable wiring standards.
• Electronic equipment wiring and assembly.
• Instrumentation and signal wiring.
• Industrial control panel wiring.
• Protection of suitable small electrical connections.
• Wire harness manufacturing and assembly.
• Industrial automation and control systems.
• Insulation around appropriately sized soldered wire connections.
• Professional electronics workshops and electrical maintenance applications.