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Partex HSDW3-9 black adhesive-lined 3:1 dual-wall heat shrink tubing, supplied in a 1.2 m length with a 9 mm supplied diameter and 3 mm recovered diameter, designed for electrical insulation, moisture-resistant cable joint sealing and industrial cable protection.
£1.66
The Partex HSDW3-9 is a durable adhesive-lined 3:1 heat shrink tubing designed to provide electrical insulation, cable protection and environmental sealing for electrical connections and cable assemblies. Featuring a dual-wall construction with an outer heat-shrinkable sleeve and an internal adhesive lining, this tubing is particularly suitable for installations requiring additional protection against moisture, dust and mechanical wear.
As part of the Partex HSDW3 dual-wall heat shrink tubing range, the HSDW3-9 features a 3:1 shrink ratio, allowing its nominal internal diameter to reduce from 9 mm to 3 mm when fully recovered. During heating, the outer sleeve contracts around the cable or component while the internal adhesive softens and flows to help create a secure seal.
The Partex HSDW3-9 is ideal for electrical contractors, maintenance engineers, control panel builders and industrial manufacturers requiring dependable insulation and sealing of cable joints, connectors and terminations. Its adhesive-lined construction makes it particularly useful in applications where standard single-wall heat shrink tubing may not provide sufficient environmental protection.
The Partex HSDW3-9 adhesive-lined heat shrink tubing provides an effective solution for protecting electrical connections against moisture, dust and mechanical wear. Unlike standard single-wall heat shrink tubing, its dual-wall construction incorporates an internal adhesive layer that softens during heating and helps fill small gaps between the tubing and the underlying cable or component.
Its 3:1 shrink ratio allows the tubing to accommodate cable joints and connectors with varying diameters. This is particularly beneficial when covering electrical splices, cable terminations and irregularly shaped connections where a close-fitting protective sleeve is required. The tubing can be cut to the desired length before installation, helping engineers and installers produce consistent, professional cable assemblies.
When installed correctly, the combination of the outer heat-shrinkable sleeve and internal adhesive helps form an effective environmental barrier around the protected connection. The tubing is suitable for applications where additional moisture resistance is required, although the sealing performance depends on correct installation, compatible cable surfaces and the suitability of the complete assembly for its operating environment.
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| Adhesive Lined | Yes | |
|---|---|---|
| Device Type | Heat-shrink tubing | |
| Material | Polyolefin | |
| Cable Diameter (mm) | 3–9 mm | |
| Internal Diameter Before Shrinking (mm) | 9 mm | |
| Shrink Ratio | 3:1 | |
| Manufacturer | Partex | |
| Series | HSDW3 Adhesive-Lined Heat Shrink Tubing | |
| Model | HSDW3-9 | |
| Product type | Adhesive-lined heat shrink tubing | |
| Construction | Dual-wall | |
| Inner lining | Heat-activated adhesive | |
| Shrink ratio | 3:1 | |
| Nominal supplied internal diameter | 9 mm | |
| Nominal recovered internal diameter | 3 mm | |
| Installation method | Heat shrinking using suitable hot-air equipment | |
| Primary function | Electrical insulation and environmental sealing | |
| Secondary function | Cable joint protection and mechanical reinforcement | |
| Typical installation | Cable joints, wire splices, connectors and electrical terminations | |
| HS Code | 39269097 |
The Partex HSDW3-9 is used for electrical insulation, cable joint protection and environmental sealing of wire splices, connectors and cable terminations. Its internal adhesive lining helps protect properly sealed connections against moisture and contaminants.
The tubing has a 3:1 shrink ratio, meaning its nominal internal diameter reduces from 9 mm to approximately 3 mm when fully recovered.
Adhesive-lined heat shrink tubing contains an internal adhesive layer that softens during heating and helps seal the tubing against the underlying cable or component. This provides additional protection against moisture, dust and environmental contaminants compared with standard non-adhesive tubing.
The dual-wall adhesive-lined construction helps create a moisture-resistant seal when installed correctly. However, suitability for waterproof or submerged applications depends on the complete cable assembly, installation conditions and any required ingress protection rating.
Cut the tubing to the required length, position it over the cable joint or connector and apply controlled heat using a suitable hot-air heat gun. Continue heating evenly until the outer sleeve contracts and the internal adhesive flows to form a seal. Allow the assembly to cool before handling or applying mechanical stress.
Partex adhesive-lined heat shrink tubing provides a practical solution for electrical insulation, cable joint protection and environmental sealing. The HSDW3-9 combines a versatile 3:1 shrink ratio, dual-wall construction and heat-activated adhesive lining to support reliable cable protection in electrical engineering, industrial maintenance and automation applications.
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