Why Choose the Partex HSDW3-39 Adhesive-Lined 3:1 Heat Shrink Tubing?
The Partex HSDW3-39 is a professional adhesive-lined 3:1 heat shrink tubing designed to provide electrical insulation, mechanical protection and enhanced environmental sealing for cables, electrical connections and wiring assemblies. Featuring a nominal supplied diameter of 39 mm and a nominal recovered diameter of 13 mm, this dual-wall heat shrink sleeving combines substantial dimensional recovery with an internal adhesive lining for reliable cable protection.
Part of the Partex adhesive-lined heat shrink range, HSDW3-39 uses heat-activated contraction to form a close-fitting protective covering around appropriately sized cables and components. During installation, the outer tubing shrinks while the internal adhesive softens and flows into contact with the underlying surface. Once cooled, the adhesive helps form a seal that reduces the potential for moisture and contaminants to enter the covered area.
The 3:1 shrink ratio allows the tubing to contract from its nominal supplied diameter of 39 mm towards a recovered diameter of 13 mm. This makes it particularly useful for cable assemblies containing changes in diameter, including suitable cable joints, connector transitions and electrical terminations. Partex HSDW3-39 is a practical choice for electrical contractors, industrial maintenance engineers, panel builders and OEM manufacturers requiring adhesive-lined protective sleeving.
Key Advantages
- 3:1 shrink ratio: Provides substantial dimensional recovery for cables and connections with varying diameters.
- Adhesive-lined construction: Incorporates an internal heat-activated adhesive that helps seal the interface between the tubing and the covered surface.
- 39 mm supplied diameter: Accommodates appropriately sized cables, connectors and electrical assemblies before shrinking.
- 13 mm recovered diameter: Allows the tubing to contract around suitable smaller-diameter sections.
- Enhanced moisture protection: The adhesive lining helps reduce moisture ingress when correctly installed on compatible surfaces.
- Electrical insulation: Provides additional insulating sleeving when correctly selected for the application's electrical requirements.
- Mechanical protection: Helps protect covered wiring against abrasion, rubbing and routine handling damage.
- Improved cable joint protection: Suitable for covering compatible cable splices, connections and transitions.
- Wide diameter accommodation: The 3:1 recovery ratio is useful for assemblies with significant changes in cross-section.
- Professional finish: Creates a neat protective covering around cable joints and terminations.
- Cut-to-length installation: Allows installers to prepare individual sleeves to suit different cable assemblies.
- Versatile applications: Suitable for industrial wiring, electrical equipment, cable harnesses and maintenance work.
Key Features
- Partex adhesive-lined heat shrink tubing for electrical insulation and cable protection.
- Manufacturer part number: HSDW3-39.
- Nominal shrink ratio: 3:1.
- Nominal supplied diameter: 39 mm.
- Nominal recovered diameter: 13 mm.
- Construction: Dual-wall heat shrink tubing with an internal adhesive lining.
- Adhesive activation: Heat-activated during shrinking.
- Primary protection: Electrical insulation, mechanical protection and enhanced environmental sealing.
- Suitable for appropriately sized cables, cable joints and connector transitions.
- Adhesive lining helps fill small gaps between the tubing and compatible underlying surfaces.
- Supports protection against moisture and environmental contamination when properly installed.
- Provides a close-fitting finish around cable assemblies with changes in diameter.
- Can be cut into individual lengths to suit installation requirements.
- Suitable for professional electrical installation, maintenance and assembly applications.
Reliable Adhesive-Lined Protection and Environmental Sealing for Electrical Connections
The Partex HSDW3-39 combines the dimensional recovery of heat shrink tubing with the sealing benefits of an internal adhesive lining. Its nominal 39 mm supplied diameter allows the tubing to be positioned over appropriately sized electrical connections, cable joints and components before shrinking. When controlled heat is applied, the tubing contracts while the internal adhesive softens and conforms to the underlying surface.
The 3:1 shrink ratio is particularly beneficial where a cable assembly contains changes in diameter. For example, a cable joint may have a larger central section than the cable insulation on either side. The tubing can accommodate the larger section before installation and recover around smaller sections, provided the selected dimensions are suitable for the entire assembly. Its nominal fully recovered diameter of 13 mm offers greater recovery capability than an equivalent 2:1 product.
Unlike standard single-wall heat shrink sleeving, the adhesive-lined construction provides an additional sealing function. As the tubing shrinks, the adhesive helps fill small gaps between the sleeve and the cable surface. Once cooled, this helps resist moisture and contamination at the covered interface. The effectiveness of the seal depends on correct installation, compatible materials, surface preparation and suitable cable geometry.
For reliable installation, the cable or component should be clean, dry and free from contaminants that could interfere with adhesive bonding. The tubing should be cut to an appropriate length, positioned to provide adequate coverage and heated evenly using a suitable heat gun. Heating should continue until the tubing has recovered around the assembly and the adhesive has activated, while avoiding excessive temperatures that could damage the cable insulation or surrounding components.
Partex HSDW3-39 is suitable for a wide range of professional electrical protection tasks, but application-specific requirements must still be considered. Where a defined IP rating, immersion resistance, voltage classification or particular environmental approval is required, the completed assembly and relevant product specifications should be checked before use.
Typical Applications
- Electrical insulation and protection of appropriately sized cable joints.
- Moisture-resistant covering of compatible electrical connections.
- Protective sleeving for cable splices and wiring transitions.
- Industrial machinery wiring and cable harness assemblies.
- Protection of suitable electrical connector backshells and cable entries.
- Electrical maintenance and cable repair applications.
- OEM equipment manufacturing and electrical assembly.
- Industrial automation and control system wiring.
- Protective covering for cables with changes in diameter.
- Environmental protection of suitable cable terminations.
- Electrical distribution and control equipment assemblies.
- Workshop cable preparation and harness manufacturing.
- Protection of suitable wiring connections exposed to moisture or contamination.
- General-purpose adhesive-lined electrical cable insulation and protection.
