High Quality Cold Shrink Tube for Coaxial Cable Wear-Resistant and Tensile-Retent Made of Silicone Rubber

Product Description

Cable accessories RFS cable cold shrink tube IP68

RUBLS-SILIC Silicone Rubber Cold shrink tube Series Cold Shrink Lug and Connector Insulators is made of special purpose silicone rubber with a high shrink ratio and excellent physical and mechanical properties like slab and prick resistance. reliably seals electrical connections of electric communications and cable televisions against water and moisture and effectively insulates wire and cable connections or joints and other electrical connections

Support customization, ODM & OEM available

Features:

1.  Operating temperature:-60°C~200°C
2. Waterproof and Sealing Class: IP68
3. Shrink Ratio :5:1
4. Good weather resistance, ozone ageing, ultraviolet and salt mist corrosion resistance
5. Simple installation
6. Standard color: Black, white, grey, etc

Click chat now to contact us for free samples

Technical Performance

Properties	Typical Data	Test Method
Shore Hardness	40±5A	GB/T 531-2008
Tensile Strength	≥9.0MPa	GB/T 528-2009
100% Stress at Definite Elongation	≤1.2MPa	GB/T 528-2009
200% Stress at Definite Elongation	≤2.0MPa	GB/T 528-2009
Elongation at Break	＞800%	GB/T 528-2009
Tear Strength	≥35kN/m	GB/T 529-2008

Dimensions

Size	Inner Diameter - mm	Min Cable Outer Diameter - mm	Max Cable Outer Diameter - mm	Full Recovered Length - mm
VS15-2	15	5	13	50
VS28-6	28	7.0	25.0	150
VS40-5.5	40	11.0	33.0	140
VS45-7	45	13.5	39.0	178
VS60-9	60	20.5	51.0	230
VS70-8	70	25.0	63.0	203

Size is available to customize

Company Show

Suzhou Volsun Electronics Technology Co., Ltd. was founded in 2006. We keep focusing on the R&D, production and sales in insulation, sealing & protection solutions for over 18 years

Quality is our culture. Volsun has a modern quality management system, which has passed a series of quality system certification such as IATF16949, ISO9001 etc

Up to now, Volsun cooperated with customers from 88 countries, we offer suitable sealing, waterproof solutions for some well-know enterprises in communication, Automobile, Power industry etc

Certifications

Abroad Exhibition

Las Vagas AAPEX

Moscow Expo

Hannover Messe

Packing & Delivery

Trade terms	FOB, EXW, CIF, DDU, DDP, CFR
Payment terms	T/T, L/C, Negotiable
Supply capability	1,000,000 pieces per month
Lead time	Usually 2-3 working days
Shipment	Express, Air, Sea
Port	Shanghai, Ningbo, Shenzhen
Sample availability	Yes
Sample time	Usually 1-2 days
Packaging	Normal: Plastic bag & Carton & Pallet Special: Customized packing

FAQ

Q 1. How long is the payment term
A: We accept T/T 50% deposit and 50% balance against B/L or L/C copy at sight, also accept Western Union, VISA and Paypal

Q 2. What is the normal lead time for product orders
A: The average lead time for prototype/first piece is 7~10 days, if tooling is involved, the lead time for production tooling  is 10 days, and the average production time after sample approval is 2-3 weeks

Q 3. What is your standard packaging
A: All goods will be packed in cartons and loaded on pallets. Special packing methods are acceptable when needed

Q 4. Can you tell us the monthly production capacity of your products
A: It depends on the model, we produce more than 1500 tons of rubber materials per month

Q 5. What kind of certificates do you have
A1: We have ISO9001:2015, IATF16949:2016, ISO14001:2015, ISO45001:2018 certified
A2: We have various rubber compounds approved by UL, ROHS and REACH

Q6: How to check the quality of bulk order
A1: We provide pre-production samples to all customers before mass production if needed
A3: We accept third-party inspection, such as SGS, TUV, INTERTEK, BV, etc

Q 7: Can you provide customized service

A: Yes, we accept customization and can produce products in different sizes, packaging, colors according to requirements

Volsun High Quality Cold Shrink Tube for Coaxial Cable Wear-Resistant and Tensile-Retent Made of Silicone Rubber

Volsun’s cold shrink tube delivers professional-grade protection for coaxial cable installations, combining advanced silicone rubber tubing formulation with a proven cold shrink method to create a durable, reliable sealing and reinforcement solution. Engineered specifically for coaxial cable protection applications, this cold shrink tube addresses common field challenges—abrasion, moisture ingress, UV exposure, and mechanical strain—while simplifying installation and reducing long-term maintenance costs. Volsun’s cold shrink tube is an essential component for telecommunications, broadcast, CATV, satellite, and outdoor RF installations where dependable performance is required.

Product features and materials

Volsun’s cold shrink tube is fabricated from high-performance silicone rubber tubing selected for its excellent elasticity, weather resistance, and long-term stability. The silicone rubber tubing exhibits exceptional flexibility across wide temperature ranges, maintaining its sealing properties from extreme cold to high heat. This cold shrink tube is formulated to resist ozone, UV radiation, and chemical contaminants, ensuring the insulating sleeve retains flexibility and adhesion properties for extended service life. The silicone rubber tubing delivers a superior tactile feel and predictable recovery force, which translates into consistent, repeatable performance during field deployment.

Design and mechanical benefits

The Volsun silicone rubber tubing used in the cold shrink tube is engineered to provide wear-resistant protection against mechanical abrasion and environmental threats. Once deployed, the cold shrink tube conforms tightly to irregular surfaces, eliminating gaps where moisture or contaminants could penetrate coaxial cable protection zones. The elastic memory of the silicone rubber tubing ensures long-term compression and sealing force around connectors and cable jackets, providing sustained mechanical and dielectric protection.

A key mechanical advantage is the tensile-retent shrink sleeve design. The tensile-retent shrink sleeve concept integrates high tensile strength with reliable retention properties so the protective sleeve remains firmly in place under axial load and vibration. The tensile-retent shrink sleeve resists longitudinal movement along the cable run, reducing stress on connectors and preventing seal migration over the life of the installation. This results in lower failure rates and reduced need for rework or replacement in demanding outdoor and industrial environments.

Installation simplicity and safety

Volsun’s cold shrink tube for coaxial cable protection offers rapid, tool-free installation. The installer removes the inner expansion core and allows the silicone rubber tubing to contract around the cable assembly, forming a uniform, tight seal. This cold shrink tube approach eliminates open-flame heat sources and complex curing steps, improving onsite safety and accelerating deployment. The silicone rubber tubing’s elastic recovery creates an immediate mechanical seal while also delivering long-term dielectric isolation. Field crews benefit from predictable, repeatable results with minimal skill required for proper application.

Application scenarios

Volsun’s cold shrink tube performs exceptionally in a broad range of applications. For broadcast and telecommunications, the cold shrink tube protects sensitive RF connections from moisture and corrosion, preserving signal integrity. In satellite and rooftop installations, the silicone rubber tubing provides UV-resistant protection against sunlight exposure while resisting temperature-driven expansion and contraction. For CATV and broadband deployments, the tensile-retent shrink sleeve prevents longitudinal migration and maintains cable routing stability in aerial and buried configurations. Industrial and marine installations benefit from the wear-resistant properties of the silicone rubber tubing, which stands up to abrasion, salt spray, and chemical exposure.

Performance and reliability

The cold shrink tube’s silicone rubber tubing is tested for dielectric strength, water ingress resistance, and mechanical endurance. The silicone rubber tubing retains elasticity after prolonged exposure to environmental stressors, enabling the cold shrink tube to maintain a tight seal and consistent protective performance. The tensile-retent shrink sleeve demonstrates superior pull-out resistance compared to conventional heat-shrink or simple adhesive boots, ensuring that connectors and cable splices remain secure during handling, wind loading, and thermal cycling.

Innovative design elements

Volsun incorporates practical innovations into the silicone rubber tubing and the tensile-retent shrink sleeve assembly to enhance field usability and lifespan. The cold shrink tube is pre-expanded over a removable core that provides a controlled collapse process for accurate positioning. The silicone rubber tubing features integrated bead profiles at sleeve ends that improve sealing contact and act as strain relief, augmenting the tensile-retent shrink sleeve’s ability to prevent axial displacement. Optional internal foams and hydrophobic gels can be included to bolster moisture sealing while preserving the mechanical retention properties of the tensile-retent shrink sleeve.

Customization and compatibility

To meet diverse installation needs, Volsun offers the cold shrink tube in multiple diameters, lengths, and wall thicknesses so the silicone rubber tubing can be precisely matched to various coaxial cable sizes and connector profiles. The tensile-retent shrink sleeve options include variations in shore hardness and recovery force to suit specific mechanical requirements, from highly flexible assemblies to more robust, abrasion-resistant installations. Volsun also supplies pre-assembled kits and bespoke configurations designed for rapid deployment in large-scale projects where consistent coaxial cable protection is critical.

Maintenance and lifecycle advantages

Because the cold shrink tube uses silicone rubber tubing with intrinsic weathering resistance, it offers lower lifecycle costs. The tensile-retent shrink sleeve design minimizes failure modes associated with adhesive degradation, thermal aging, or creep, so maintenance intervals are extended and the risk of unscheduled repairs is reduced. When inspections are performed, the cold shrink tube remains visually intact, providing unmistakable evidence of a secure and properly retained seal. These attributes result in reduced total cost of ownership for telecom operators and system integrators.

Quality assurance and standards

Volsun manufactures cold shrink tube products under rigorous quality control protocols. Each batch of silicone rubber tubing is evaluated for uniformity, tensile strength, and recovery properties to ensure that every cold shrink tube meets the performance criteria demanded by modern coaxial cable protection applications. Where applicable, Volsun provides products that align with industry standards for cable sealing, UV resistance, and environmental durability, ensuring compatibility with professional-grade installations.

Volsun’s high quality cold shrink tube brings together advanced silicone rubber tubing materials and a tensile-retent shrink sleeve architecture to deliver robust coaxial cable protection that is easy to install, long-lasting, and resistant to environmental and mechanical stresses. For installers, network operators, and system designers seeking reliable, wear-resistant protection, Volsun’s cold shrink tube represents an effective solution that reduces installation risk, extends service life, and preserves signal performance across demanding applications. Whether used for broadcast, satellite, CATV, or industrial deployments, Volsun’s cold shrink tube is engineered to meet the rigorous needs of modern coaxial cable protection.