Cold Shrink EPDM Rubber Tube Shenzhen Manufacturer

**Product Description:** The ethylene propylene diene monomer (EPDM) rubber cold shrink sleeve is a rubber insulation sleeve that is pre-expanded over a pull-out support tube. When in use, it can be positioned and then the support tube is pulled out, allowing the radial pressure to create a covering that provides waterproof and moisture-proof sealing. Huayuanxin cold shrink tube is made from EPDM rubber material, which has excellent weather resistance and acid-alkali resistance, achieving a breathable sealing effect. It is an ideal sealing material for communication cables, coaxial cables, and medium and low voltage power cables. Compared to silicone rubber cold shrink tubes: it has better puncture resistance, abrasion resistance, and acid-alkali resistance; compared to heat shrink tubes: it does not harden or become brittle during long-term use, and can maintain a tight seal under thermal expansion and contraction without creating gaps, making it suitable for harsher environments. **Product Applications:** - Sealing connections at wireless communication towers such as 3G communication base stations, and exposed terminals, joints, antennas, etc. - Insulation protection and sealing for various specifications of medium and low voltage power cable connections, as well as communication cables and optical cables. - Waterproof and moisture-proof sealing for cable and optical cable junctions. **Product Features:** 1. Easy installation, requiring only manual operation without special tools or heating; no hot melt glue or tape is needed to enhance sealing at joints. 2. Suitable for connecting and sealing cables of varying specifications and can be used for indoor, outdoor, overhead, submerged, or buried conditions for power cables below 1000V. 3. The rubber has strong elasticity and high radial pressure, maintaining consistent radial pressure on the cable even after long-term use, providing a tight seal with excellent moisture resistance. 4. It breathes with the sealed components, providing excellent sealing performance; maintains very good sealing even in wind-induced sway. 5. Resistant to salt spray corrosion, acid-alkali, ozone aging, weather aging, and UV aging. 6. Exhibits excellent puncture resistance and mechanical properties. **EPDM Cold Shrink Material Electrical Performance:** | Performance Item | Unit | Index | Test Method or Standard | |-----------------------|---------------|---------|------------------------------| | Hardness | Shore A | 49 | GB/T531.1-2008 | | Tensile Strength | MPa | ≥11.8 | GB/T528-1998 | | Elongation at Break | % | ≥641 | GB/T528-1998 | | Tear Strength | N/mm | ≥38.6 | GB/T529-1999 | | Breakdown Strength | kV/mm | ≥19.1 | GB1695-2005 |