Custom Waterproof Cable | Longitudinal Water-Blocking Cable

Longitudinal Water-Blocking Cable is a specialized waterproof cable designed to prevent water from entering and spreading through the cable core in case of outer sheath damage or long-term exposure to wet environments.

The cable uses advanced water-blocking materials such as water-swellable tapes, water-blocking yarns, or filling compounds to provide effective internal sealing.

Compared with conventional waterproof cables, longitudinal water-blocking cables provide higher reliability for environments where continuous moisture exposure, underground installation, or marine conditions exist.

As a custom cable manufacturer, we provide tailored waterproof cable solutions based on your operating environment, water-blocking requirements, and electrical specifications.

Key Features

Longitudinal Water Blocking Protection

Prevents water from spreading along the cable core.

Protects internal conductor structure.

Reliable Waterproof Performance

Suitable for wet, submerged, and high-humidity environments.

Enhanced Mechanical Protection

Provides better cable integrity under harsh environmental conditions.

Corrosion Resistance

Designed for marine, underground, and outdoor applications.

Flexible Custom Design

Water-blocking structures and materials can be customized according to project requirements.

Stable Power & Signal Transmission

Suitable for power, control, and communication systems.

Typical Applications

• Marine Equipment

• Offshore Platforms

• Underground Cable Systems

• Outdoor Communication Systems

• Industrial Control Systems

• Tunnel Equipment

• Water Treatment Systems

• Subsea Monitoring Systems

• Pump Systems

• Field Sensor Systems

Cable Structure

Conductor

Customizable conductor options:

• Bare Copper

• Tinned Copper

• Silver-Plated Copper

Benefits:

• Stable conductivity

• Corrosion resistance

• Long service life

Insulation

Customizable insulation materials:

• XLPE

• PE

• PVC

• FEP

• PTFE

Selected according to environmental and electrical requirements.

Water-Blocking Layer

Available water-blocking structures:

• Water-blocking tape

• Water-swellable yarn

• Water-blocking filling compound

• Combined water-blocking structures

Provides internal sealing protection.

Shielding

Optional shielding structures:

• Aluminum Foil Shield

• Braided Shield

• Copper Tape Shield

• Double Shielding

For EMI protection and signal stability.

Outer Jacket

Customizable outer jacket materials:

• TPU

• PUR

• PVC

• Rubber

• LSZH

Features:

• Waterproof

• Oil resistant

• Abrasion resistant

• UV resistant

• Weather resistant

Technical Specifications

Water-Blocking Technology Options

We provide multiple water-blocking solutions based on application requirements:

Water-Blocking Tape

Suitable for standard waterproof applications.

Water-Swellable Yarn

Provides fast sealing when exposed to water.

Water-Blocking Filling Compound

Suitable for higher waterproof requirements.

Combined Water-Blocking Structure

Maximum protection for critical environments.

Custom Manufacturing Capabilities

We support customized waterproof cable manufacturing based on:

• Water-blocking requirements

• Cable structure design

• Power or signal transmission requirements

• Installation environment

• Underground or marine applications

• Voltage requirements

• Temperature requirements

• Shielding requirements

• Outer diameter requirements

• Jacket material requirements

Why Choose Us

Waterproof Cable Engineering Expertise

Professional experience in water-blocking cable design and manufacturing.

OEM & ODM Support

Custom manufacturing according to project requirements.

Advanced Water-Blocking Technology

Multiple internal water-blocking solutions available.

Strict Quality Control

Every cable is tested before shipment.

Fast Sample Development

Quick sample production for testing and validation.

FAQ

What is a longitudinal water-blocking cable?

It is a cable designed to prevent water from spreading along the cable core internally.

Is this a standard product?

No, this is a custom-engineered product based on project requirements.

Can you customize the water-blocking structure?

Yes, multiple water-blocking technologies are available.

Can it be used for marine applications?

Yes, it is suitable for marine, offshore, and underwater environments.

Can you manufacture according to drawings?

Yes, we support full OEM and ODM manufacturing.