HSDW3-3 Partex adhesive-lined 3:1 heat shrink, 3/1mm, pack Length

Why Choose the Partex HSDW3-3 Adhesive-Lined 3:1 Heat Shrink Tubing?

The Partex HSDW3-3 is a versatile adhesive-lined heat shrink tubing designed for electrical insulation, cable protection, wire repairs and protective sealing. Featuring a 3:1 shrink ratio, this tubing reduces from a nominal supplied internal diameter of 3 mm to 1 mm when fully recovered, providing a close-fitting protective covering around appropriately sized wires, electrical connections and small cable assemblies.

Manufactured by Partex, a specialist in cable identification and electrical installation products, the HSDW3-3 combines heat shrink insulation with an internal adhesive lining. When heated, the tubing contracts around the underlying component while the adhesive activates, helping create a protective seal against moisture, dust and other contaminants.

The 3:1 shrink ratio offers greater diameter reduction than conventional 2:1 heat shrink tubing, making the HSDW3-3 particularly useful for applications involving small wires, cable joints and components with varying diameters. Its compact 3 mm supplied internal diameter makes it suitable for precision electrical work, control panel wiring, cable harness assembly and professional maintenance applications.

The HSDW3-3 is supplied as part of the Partex adhesive-lined heat shrink range. The pack length should be confirmed against the selected product listing, as the supplied specification identifies the pack format as length-based without stating a numerical quantity.

Key Advantages

• 3:1 heat shrink ratio provides greater diameter reduction for a close fit around suitably sized wires and components.
• 3 mm supplied internal diameter reducing to approximately 1 mm when fully recovered.
• Adhesive-lined construction helps provide a protective seal around electrical connections.
• Heat-activated adhesive helps reduce moisture and contaminant ingress when correctly installed.
• Combines electrical insulation and protective sealing in a single sleeving product.
• Helps protect suitable cable connections against abrasion and everyday mechanical wear.
• Ideal for smaller wires, cable joints and compact electrical assemblies.
• Can be cut to the required length for individual electrical insulation and cable protection tasks.

Key Features

• Partex HSDW3-3 adhesive-lined heat shrink tubing.
• 3:1 nominal shrink ratio.
• 3 mm supplied internal diameter.
• 1 mm nominal recovered internal diameter.
• Internal adhesive lining for additional connection protection.
• Heat-activated shrinking and adhesive sealing.
• Suitable for appropriately sized small wires and electrical connections.
• Helps provide insulation and protection against everyday mechanical wear.
• Can be cut to length for individual installation requirements.
• Suitable for electrical wiring repairs, cable harnesses, control panels and industrial equipment.

Reliable Electrical Insulation and Adhesive-Lined Cable Protection

Adhesive-lined heat shrink tubing is widely used in electrical installations where a cable or connection requires both insulation and additional environmental protection. Unlike standard non-adhesive heat shrink sleeving, adhesive-lined tubing incorporates an internal layer that activates during heating, helping form a seal between the tubing and the underlying cable insulation.

The Partex HSDW3-3 combines this adhesive-lined construction with a 3:1 shrink ratio, allowing the tubing to recover from a nominal supplied internal diameter of 3 mm towards 1 mm. This greater shrink capability can be particularly beneficial when covering small cable joints, wire transitions and electrical components with changes in diameter.

As heat is applied, the outer tubing contracts around the component while the internal adhesive softens and helps fill small gaps around the covered area. Once cooled, the adhesive helps maintain a protective barrier against moisture and contaminants. This makes the HSDW3-3 a practical option for electrical wiring repairs and cable assemblies where additional sealing is desirable.

The adhesive lining can also help provide additional support around the covered section, although the tubing should not be used as a substitute for a properly designed electrical joint, connector or mechanical strain relief where one is required. Any claim of a specific waterproof rating, operating temperature or electrical approval should be checked against the manufacturer's technical documentation.

For effective installation, select tubing with a supplied internal diameter large enough to pass over the intended wire or connection and a recovered diameter suitable for achieving the required fit. Cut the tubing to length, position it over the connection and apply controlled, even heat using an appropriate heat gun. Follow the manufacturer's installation recommendations and avoid overheating the tubing or underlying cable insulation.

Typical Applications

• Electrical wire insulation and protection.
• Protective sealing of small cable joints.
• Electrical wiring repairs and maintenance.
• Small-diameter wire harness assembly.
• Industrial control panel wiring.
• Protection of suitable soldered wire connections.
• Insulation around appropriately sized electrical terminals.
• Low-voltage equipment wiring, subject to the product's verified electrical ratings.
• Industrial automation and instrumentation wiring.
• Protection against moisture and contaminants at suitable cable connections.
• Electrical equipment manufacturing and assembly.
• Professional cable management and refurbishment work.