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Friday, June 9, 2023

 WCSM Heat Shrink Tubing: A Reliable Solution for Low Voltage Applications


WCSM heat shrink tubing is a thick-wall, low voltage insulation and outer sealing tubing designed for a wide range of applications. With its high electrical characteristics, mechanical strength, and versatile features, WCSM tubing offers effective insulation, protection, and sealing for low, medium, and high voltage cables and accessories. This article explores the key features and benefits of WCSM heat shrink tubing, highlighting its superior properties and application capabilities.

High-Quality Construction

WCSM is manufactured using a cross-linked polyolefin material that offers exceptional electrical and mechanical properties. The tubing is UV stabilized to withstand irradiation and weathering, ensuring long-term performance in various environmental conditions. Moreover, WCSM tubing is halogen and silicon-free, making it non-corrosive, non-toxic, and free of lead and aluminum.

Versatile Applications

Raychem WCSM tubing is specifically designed to meet the insulation and sealing requirements of low voltage cable accessories. It can be easily applied to cables and cable accessories for insulation, protection, and rejacketing purposes. The high shrink ratio of the tubing enables it to fit tightly over a wide range of cable sizes, ensuring a secure and reliable seal.

Reliable Moisture Seal

One of the standout features of WCSM tubing is its inner sealant wall, which provides a dependable moisture seal even over irregular shapes. This feature is particularly important in cable splicing applications, where sealing against moisture is critical. The tubing's ability to form a tight moisture seal helps prevent water ingress and protects the integrity of the cables.

Mechanical Strength and Ease of Installation

The WCSM tubing possesses excellent mechanical strength, allowing for immediate back-filling of cable trenches after jointing. This feature not only saves time but also enhances the overall efficiency of cable installation projects. Additionally, the tubing's ruggedness and easy installation make it a preferred choice for various low voltage applications.

Superior Performance and Longevity

WCSM tubing has been extensively tested and proven to exhibit outstanding physical characteristics. It meets stringent requirements for tensile strength, ultimate elongation, hardness, low-temperature flexibility, dielectric strength, volume resistivity, water absorption, and weathering. These properties ensure reliable performance and long-term reliability in harsh climatic conditions and polluted environments.

Product Selection and Specifications

The WCSM heat shrink tubing is available in various sizes to accommodate different application needs. The dimensions are shown in millimeters, and the tubing comes in standard lengths of 1000mm. Customers can request other lengths or spools as per their specific requirements, subject to standard cutting tolerances.


WCSM heat shrink tubing offers a robust solution for low voltage applications, combining high electrical characteristics, mechanical strength, and ease of installation. Its thick-wall design provides reliable insulation and outer sealing, ensuring the integrity and longevity of cables and cable accessories. With its exceptional properties and versatile features, WCSM tubing has proven its reliability in demanding environments. Whether it's insulation, protection, or rejacketing, WCSM tubing delivers consistent performance and high-quality results for various low voltage applications.

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