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>> Product Introduction
EPDM Cold shrink tube is made of EPDM weather-resistant rubber. When in use, you only need to position it and then remove the support tube. The radial pressure is used to form a coating to achieve waterproof and moisture-proof sealing. EPDM cold shrink tube has excellent weather resistance, acid and alkali resistance, and can achieve the function of breathing sealing. It is an ideal sealing material for communication cables and coaxial cables. It is mainly used for moisture-proof sealing at the joints between antennas and feeders and wires in the antenna feeder system of communication base stations.
Material advantages:
Excellent anti-pollution, anti-aging, waterproof, corrosion-resistant, cold-resistant, anti-ultraviolet radiation and other properties.
Material advantages:
It has excellent anti-pollution, anti-aging, waterproof, corrosion-resistant, cold-resistant, anti-ultraviolet radiation and other properties, and can be used in cold, humid, high-altitude, and heavily polluted areas
>> Product Advantage
1. Clean the surface: ensure that there is no oil or impurities on the coated part.
2. Pre-expansion positioning: insert the cold shrink tube and align the position.
3. Extract the support strip: slowly pull out the inner lining core rope and shrink it evenly.
4. Check the sealing: it is qualified if there are no wrinkles or bubbles after shrinkage.
>> Technical Parameters
| Product Performance | Test Method | Testing standards |
| Hardness (Shore A) | ISO 7619-1:2010 | 43±5 |
| Tensile strength (MPa) | GB/T 528-2009 | ≥8 |
| Elongation at break (%) | GB/T 528-2009 | ≥600 |
| Tear strength (KN/mm) | GB/T 529-2008 | ≥35(Right angle knife ≥20) |
| Operating temperature (℃) | High and low temperature cycle test aging box | -40~165 |
| Volume resistivity | -- | ≥1*1013 |
| Dielectric constant | -- | ≤8.0 |
| Specification (mm) | Suitable for cable outer diameter Min.-Max. (mm) | Length after full retraction (mm) |
| Φ25*178 | 10-20（0.39"-0.79"） | 178（7"） |
| Φ25*203 | 10-20（0.39"-0.79"） | 203（8"） |
| Φ25*280 | 10-20（0.39"-0.79"） | 280（11"） |
| Φ25*305 | 10-20（0.39"-0.79"） | 305（12"） |
| Φ32*280 | 12-28（0.47"-1.10"） | 280（11"） |
| Φ32*305 | 12-28（0.47"-1.10"） | 305（12"） |
| Φ35*152 | 14-30（0.55"-1.18"） | 152（6"） |
| Φ35*203 | 14-30（0.55"-1.18"） | 203（8"） |
| Φ35*230 | 14-30（0.55"-1.18"） | 230（9"） |
| Φ35*280 | 14-30（0.55"-1.18"） | 280（11") |
| Φ40*152 | 17.5-33（0.69"-1.30"） | 152（6") |
| Φ40*203 | 17.5-33（0.69"-1.30"） | 203（8") |
| Φ40*254 | 17.5-33（0.69"-1.30"） | 254（10") |
| Φ40*305 | 17.5-33（0.69"-1.30"） | 305（12") |
| Φ40*406 | 17.5-33（0.69"-1.30"） | 406（16") |
| Φ53*152 | 25-46（0.98"-1.81"） | 152（6") |
| Φ53*178 | 25-46（0.98"-1.81"） | 178（7") |
| Φ53*254 | 25-46（0.98"-1.81"） | 254（10") |
| Φ53*305 | 25-46（0.98"-1.81"） | 305（12") |
| Φ53*457 | 25-46（0.98"-1.81"） | 457（18") |
| Φ70*152 | 32-65（1.26"-2.56"） | 152（6") |
| Φ70*230 | 32-65（1.26"-2.56"） | 230（9") |
| Φ70*305 | 32-65（1.26"-2.56"） | 305（12") |
| Φ70*355 | 32-65（1.26"-2.56"） | 355（14") |
| Φ70*457 | 32-65（1.26"-2.56"） | 457（18") |
Power Distribution System: Sealing and insulation protection for low/medium voltage cable joints and terminations.
Outdoor Electrical Projects: Waterproof and anti-corrosion protection for overhead cables and equipment terminals.
Telecommunication Cables: Moisture-proof sealing and insulation for communication cable splices.
Harsh Environment Installations: Cable protection in cold, humid, high altitude or heavily polluted areas.
Select the cold shrink tube size according to the outer diameter of the cable or joint to be protected.
Confirm the required waterproof grade and environmental resistance requirements for the application scenario.
Standard sizes from Φ20 to Φ150 are available, custom specifications can be produced for bulk orders.
>> FAQ
Q1: What are the key performance standards of the EPDM cold shrink tube?
A1: It complies with IEC60529 waterproof test, ASTM G154 UV resistance test and GB/T7762 ozone aging test, ensuring stable performance in harsh environments.
Q2: Is heat required during installation?
A2: No heat or special tools are needed. Simply pull out the inner plastic spiral support, and the tube will shrink tightly on its own.
Q3: Can we customize color and dimension?
A: White/Black regular colors in stock, special color and custom size are available for bulk orders.
