Why Choose the Partex HS2381BLACK 2:1 Black Heat Shrink Tubing?
The Partex HS2381BLACK is a versatile 2:1 black heat shrink tubing designed for electrical insulation, cable protection and mechanical protection of larger wires, cable bundles and electrical connections. Featuring a nominal supplied diameter of 38.1 mm and a nominal recovered diameter of 19 mm, this heat shrink sleeving provides a practical solution for protecting larger conductors and cable assemblies in industrial electrical installations.
Part of the Partex heat shrink tubing range, HS2381BLACK uses heat-activated contraction to form a close-fitting protective sleeve around appropriately sized cables and components. The tubing helps protect covered wiring against abrasion, rubbing and routine handling damage while providing a neat, professional finish. Its black colour offers a discreet appearance that integrates well with industrial cable installations, electrical equipment and wiring harnesses.
With a 2:1 nominal shrink ratio, the tubing can contract from its supplied diameter of 38.1 mm towards a recovered diameter of 19 mm when heated correctly. Supplied in a convenient 30 m pack, Partex HS2381BLACK is suitable for control panel manufacturers, electrical contractors, industrial maintenance engineers and OEM equipment builders requiring cut-to-length protective sleeving for larger cable assemblies.
Key Advantages
- 2:1 shrink ratio: Provides dimensional recovery for a close fit around appropriately sized cables and components.
- 38.1 mm supplied diameter: Accommodates larger cables, conductor bundles and electrical connections before shrinking.
- 19 mm recovered diameter: Allows the tubing to contract around suitable cable assemblies for a neat protective finish.
- Black colour: Provides a professional, discreet appearance for industrial wiring and cable protection.
- Electrical insulation: Provides additional insulating sleeving when correctly selected for the application's electrical requirements.
- Mechanical protection: Helps reduce exposure to abrasion, rubbing and routine handling damage.
- Large-diameter coverage: Suitable for protecting larger cable assemblies and grouped conductors.
- Professional finish: Creates a tidy covering around cable transitions, conductor bundles and suitable electrical terminations.
- Cut-to-length convenience: Allows installers to prepare individual sleeves for different cable assemblies.
- 30 m pack: Provides a practical quantity for installation, production and maintenance work.
- Versatile applications: Suitable for electrical panels, machinery wiring, cable harnesses and industrial equipment assemblies.
Key Features
- Partex heat shrink tubing for electrical insulation and cable protection.
- Manufacturer part number: HS2381BLACK.
- Nominal shrink ratio: 2:1.
- Nominal supplied diameter: 38.1 mm.
- Nominal recovered diameter: 19 mm.
- Colour: Black.
- Pack length: 30 m.
- Heat-activated radial shrinking for a close-fitting sleeve.
- Suitable for appropriately sized larger cables and grouped conductors.
- Helps protect covered wiring against routine mechanical wear.
- Provides a neat finish for industrial electrical cable assemblies.
- Can be cut into individual lengths to suit installation requirements.
- Suitable for professional electrical installation, maintenance and assembly applications.
Reliable Insulation and Mechanical Protection for Larger Cable Assemblies
The Partex HS2381BLACK provides a convenient solution for protecting larger electrical cables, conductor bundles and connections that require a substantial sleeve opening. Its nominal 38.1 mm supplied diameter allows the tubing to be positioned over appropriately sized cable assemblies, wiring transitions and components before heat is applied. Once heated correctly, the tubing contracts around the assembly to create a close-fitting protective covering.
The 2:1 shrink ratio offers flexibility when selecting tubing for cable assemblies with variations in diameter. The nominal recovered diameter of 19 mm allows the tubing to reduce to approximately half its original diameter, helping installers achieve a tidy and consistent finish. Correct sizing is essential: the tubing must fit over the largest part of the assembly before shrinking and recover sufficiently to grip the intended surface.
Its black finish makes HS2381BLACK particularly useful for general-purpose protective sleeving where a discreet, professional appearance is preferred. Black heat shrink tubing can help maintain a consistent appearance across cable harnesses, industrial control cabinets and machinery installations. Where conductor identification is required, the tubing must be used in accordance with applicable electrical wiring standards and must not obscure essential identification markings.
The 30 m pack is convenient for panel-building workshops, electrical assembly operations and maintenance departments that regularly prepare cable sleeving. Installers can cut the required length, position it over the conductor or cable assembly and apply controlled heat using an appropriate heat gun. For applications requiring moisture sealing, a specifically rated adhesive-lined or sealing product should be selected rather than assuming standard heat shrink tubing provides a watertight seal.
Typical Applications
- Electrical insulation of appropriately sized larger cables and conductor assemblies.
- Industrial control panel wiring and cable management.
- Protective sleeving for larger cable bundles and wiring looms.
- Machinery wiring and industrial automation installations.
- Protection of suitable cable joints and wiring transitions.
- Electrical distribution equipment and switchgear assemblies.
- Industrial cable harness manufacturing and assembly.
- OEM equipment manufacturing and electrical production lines.
- Industrial maintenance, repairs and refurbishment work.
- Protective finishing of suitable electrical cable terminations.
- Workshop cable preparation and harness assembly.
- General-purpose electrical cable protection and insulation.
