Heavy wall

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Heavy wall - Cable Accessories

Heavy Wall Heat Shrink Tubing (WCSM Series)

High-Performance Cable Sealing and Insulation

Manufactured by TE Connectivity (Raychem) and CommScope — Distributed in Ireland by Cable Accessories Ltd

Durable, Weatherproof Protection for Power and Telecom Cables

Cable Accessories Ltd supplies and stocks a full range of heavy-wall heat shrink tubing from TE Connectivity (Raychem) and CommScope, designed for mechanical protection, environmental sealing, and low-voltage insulation applications.

These rugged, adhesive-lined tubes combine exceptional electrical performance with mechanical strength, ensuring long-term reliability in harsh field conditions.

Whether used for power cable joints, end terminations, or telecom duct sealing, our heavy-wall shrink sleeves deliver proven performance trusted across Ireland’s utility and telecom networks.

Contact Us

Whether you need product advice, a custom solution, or just have a quick question — we’re here to help and happy to chat!

Overview

The WCSM series is a cross-linked, heavy-wall polyolefin heat shrink tubing with a hot-melt adhesive inner lining.
It provides a reliable environmental seal and electrical insulation for a wide range of cable diameters and configurations.

Key Features

High shrink ratio (>3:1) — fits a broad range of cable sizes
Thick adhesive coating — forms watertight seals over irregular surfaces
Excellent electrical and mechanical strength
Halogen-free, non-corrosive, non-toxic material
UV and weather-resistant — suitable for outdoor and buried use
No shelf-life limits — unlike resins or cold-applied systems
Fast, clean installation — immediate backfilling after shrink
RoHS and REACH compliant

Applications

Low-voltage cable joints and repairs
Outer sealing for power and control cables
Mechanical and corrosion protection
Moisture sealing of telecom and utility cables
Marine and offshore cable protection (approved grades available)

Property	Value / Standard
Material	Cross-linked polyolefin with hot-melt adhesive
Shrink Ratio	> 3:1
Operating Temperature	–40 °C to +100 °C
Installation Temperature	> 120 °C
Dielectric Strength	≥ 10 kV/mm
Tensile Strength	≥ 12 MPa
Elongation at Break	≥ 350%
Hardness	≥ 45 Shore D
Water Absorption	≤ 0.25%
UV Stability	Carbon-black stabilized
Chemical Resistance	Excellent — fuels, oils, moisture, and salt spray

For Available Sizes please get in touch with us.

Supplied in 1 and 1.5 m lengths.

Authorised distributor for TE Connectivity and CommScope
Local stock of WCSM Heavy Wall Heat Shrink Tubing
Technical guidance on sizing and installation
Trusted by Irish utilities and telecom contractors for over 25 years

Our team ensures you receive the right size, right seal, and right protection — first time, every time.

Get in Touch

Submit a contact form to discuss your closure requirements or request documentation.

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