### Product Overview

Wuji Electronics premium cold shrink tubing is engineered for professional cable insulation and protection in power and communication engineering applications. Manufactured from high-grade EPDM and silicone rubber composites, our cold shrink sleeves deliver exceptional performance in the most demanding environments.

Unlike traditional heat-shrink products that require torches or heat guns, our cold shrink technology allows for simple, tool-free installation at room temperature. The tubing is pre-expanded during manufacturing and held in place by a removable plastic spiral support. Simply slide the tubing into position, remove the support, and the material contracts automatically to form a tight, waterproof seal.

### Core Features & Advantages

#### 1. Premium Material Formula

- **EPDM Silicone Rubber Blend**: Combines the weather resistance of EPDM with the flexibility of silicone

- **Temperature Range**: -55°C to +150°C continuous operation

- **Environmental Resistance**: Salt spray, ozone, UV aging, and chemical corrosion resistant

- **Electrical Insulation**: Dielectric strength >25kV/mm, meets IEC 60230 standards

#### 2. Innovative Cold Shrink Technology

- **Room Temperature Installation**: No heat required, eliminating fire hazards

- **Simple Operation**: Just remove the plastic spiral support – contraction begins automatically

- **Uniform Radial Pressure**: Maintains constant clamping force for the life of the product

- **No Adhesives Needed**: Creates a waterproof seal through elastic compression alone

#### 3. Superior Sealing Performance

- **Waterproof Protection**: IP68 rated when properly installed

- **Long-Term Reliability**: Radial clamping force ensures seal integrity for 20+ years

- **Thermal Cycling Resistance**: Maintains seal through temperature fluctuations

- **Vibration Dampening**: Absorbs mechanical stress in dynamic applications

#### 4. Wide Application Scenarios

- **Power Engineering**: Medium voltage cable terminations and joints (10kV-35kV)

- **Telecommunications**: Fiber optic and copper cable protection

- **Industrial Equipment**: Motor lead wire insulation

- **Renewable Energy**: Wind and solar power connections

- **Underground Installations**: Direct burial and submersible applications

### Technical Specifications

| Parameter | Value |

|-----------|-------|

| Material | EPDM / Silicone Rubber |

| Shrink Ratio | 2:1 to 4:1 depending on size |

| Operating Temperature | -55°C to +150°C |

| Dielectric Strength | >25kV/mm |

| Tensile Strength | >8MPa |

| Elongation at Break | >500% |

| Service Life | >20 years |

### Installation Guide

1. **Prepare Cable**: Clean and dry the cable surface, remove any sharp burrs

2. **Position Tubing**: Slide the cold shrink tubing over the cable to the desired position

3. **Remove Support**: Pull the plastic spiral support string to initiate contraction

4. **Verify Installation**: Check that the tubing has fully contracted and formed a uniform seal

### Quality Assurance

All Wuji Electronics cold shrink tubing undergoes rigorous quality control:

- 100% visual inspection before shipping

- Batch testing for electrical and mechanical properties

- ISO 9001:2015 certified manufacturing

- CE and RoHS compliant