HS2381GREY Partex 2:1 heat shrink tubing, 38.1/19mm, grey, pack 30m

Why Choose the Partex HS2381GREY 2:1 Grey Heat Shrink Tubing?

The Partex HS2381GREY is a versatile grey heat shrink tubing designed for electrical insulation, cable protection, conductor identification and professional cable management. Featuring a 2:1 shrink ratio, this tubing reduces from a nominal supplied internal diameter of 38.1 mm to 19 mm when fully recovered, providing a close-fitting protective sleeve around appropriately sized cables, wire bundles and electrical components.

Manufactured by Partex, a specialist in cable identification and electrical installation products, this grey heat shrink tubing provides a practical solution for protecting electrical connections while supporting clear and consistent conductor identification. Its distinctive grey colour is particularly useful for colour-coded wiring systems, helping electricians, control panel builders and maintenance engineers distinguish designated conductors and cable groups within electrical installations.

Supplied in a convenient 30 m pack, the HS2381GREY is suitable for electrical contractors, industrial manufacturers, automation engineers and maintenance professionals requiring a bulk supply of heat shrink sleeving. With its 38.1 mm supplied diameter and 19 mm nominal recovered diameter, it is particularly useful for larger conductors, cable bundles, electrical terminations and protective sleeving applications in industrial and commercial environments.

Key Advantages

• 2:1 heat shrink ratio provides a close fit around appropriately sized cables and electrical components.
• 38.1 mm supplied diameter reducing to approximately 19 mm when fully recovered.
• Grey colour coding supports clear conductor identification and organised electrical wiring.
• 30 m bulk pack suitable for professional installations, manufacturing and maintenance environments.
• Helps provide electrical insulation and mechanical protection for suitable cables and connections.
• Protective sleeving helps reduce exposure to abrasion and everyday mechanical wear.
• Suitable for covering appropriately sized larger cable bundles and electrical terminations.
• Can be cut to the required length for individual cable identification and insulation tasks.

Key Features

• Partex HS2381GREY heat shrink tubing.
• 2:1 nominal shrink ratio.
• 38.1 mm supplied internal diameter.
• 19 mm nominal recovered internal diameter.
• Grey colour for cable identification and colour-coded wiring systems.
• 30 m pack quantity for professional electrical installation requirements.
• Heat-activated shrinking for a neat, close-fitting finish.
• Suitable for electrical insulation, cable protection and conductor identification.
• Can be cut to length for individual installation requirements.
• Designed for use in electrical wiring, control panels, industrial machinery and cable assemblies.

Reliable Electrical Insulation and Conductor Identification

Heat shrink tubing is widely used in electrical and industrial installations to provide protective sleeving around conductors, cable connections and electrical components. When suitable heat is applied, the tubing contracts around the underlying component, creating a neat, close-fitting covering that helps protect against abrasion and provides additional electrical insulation where appropriate.

The Partex HS2381GREY combines a practical 2:1 shrink ratio with a larger 38.1 mm supplied internal diameter, making it particularly useful for applications involving larger cables, grouped conductors and electrical connections. Its grey finish provides a clearly identifiable appearance across cable assemblies while helping protect the underlying wiring against minor mechanical damage.

In UK and European harmonised wiring systems, grey is commonly used to identify the L3 line conductor in three-phase electrical installations. Grey heat shrink sleeving can therefore assist with phase identification at suitable cable terminations and within electrical control panels. However, the selected identification method must comply with applicable wiring regulations and installation requirements. Colour-coded sleeving must not be treated as a substitute for appropriate electrical testing or safe isolation procedures.

For effective installation, select tubing with a supplied internal diameter large enough to pass over the intended cable, connector or component and a recovered diameter suitable for the required fit. Cut the tubing to length and apply controlled, even heat using an appropriate heat gun, following the manufacturer's installation recommendations and avoiding excessive heating of the underlying cable insulation. Where a moisture-resistant seal or environmental barrier is required, a suitably specified sealing product should be selected rather than assuming standard heat shrink tubing is waterproof.

Typical Applications

• Electrical wire and cable insulation.
• Grey colour-coded conductor identification.
• L3 phase identification in suitable three-phase electrical installations.
• Protective sleeving for larger conductors and cable bundles.
• Electrical control panel wiring and assembly.
• Industrial automation and machine control systems.
• Protection of suitable cable joints and electrical connections.
• Wire harness manufacturing and cable management.
• Electrical equipment manufacturing and assembly.
• Maintenance and repair of electrical wiring.
• Protective covering for appropriately sized cable terminations.
• Commercial and industrial electrical installations.