It is an open-end tubular rubber sleeve, which is pre-expanded and assembled onto a removable core. The core is removed after the tube has been positioned for installation over a cable connector, terminal lug, etc., then the rubber tube shrinks onto the connector and form a waterproof seal. It is made of Silicone rubber material, which have excellent weather resistance, acid and alkali resistance. It is ideal sealing material for the wire and cable connection in telecommunication and power field, and kinds of other types of connections
Three Series
| Silicone/EPDM cold shrink tube CST series |  |
 | Silicone cold shrink tube with built-in mastic CSTM series |
| silicone cold shrink tube with two way pulling CST2 series |  |
How to use
Specification
Product Number | After Expansion/mm | Before Expansion/mm | |
ID | Length | Thickness | |
CST-15 | Φ15 | 50-200 | 2.5 |
CST-18 | Φ18 | 50-300 | 2.5 |
CST-28 | Φ28 | 60-400 | 2.5 |
CST-30 | Φ30 | 60-400 | 2.5 |
CST-35 | Φ35 | 80-600 | 2.5 |
CST-40 | Φ40 | 100-600 | 3.0 |
...... | ...... | ...... | ...... |
CST-80 | Φ80 | 100-800 | 3.5 |
Note: sizes are customizable according to customer's requirements
Technical Data
Performance | Typical Value | Test Method |
Hardness | 40±2 Shore A | ASTM D2240 |
Tensile Strength | 10.3MPa | ASTM D 421 |
Elongation | 900% | ASTM D 412 |
Tear Strength | 41.6N/mm | ASTM D 624 |
Brittle Temperature | ＜–40℃ | ISO 812 |
Electric Strength | 23KV/mm | ASTM D 4325 |
Volume Resistivity | 1.0×1017ΩNaN | ASTM D 4325 |
Thermal Ageing | Pass | ASTM D 412 |
UV Ageing | Pass | ASTM G 154 |
Ozone Ageing | Pass | ASTM D 1149 |
Sealing Class | IP67/68 | IEC60529-1989/2015 |
Operation Temperature | -55 to +200℃ |
Dimensions
| Product Number | Diameter(mm) | Cable size (mm) | Length (mm) | Tube thickness(mm) | Color | |
| Min | Max | |||||
| CST-18 | Φ18 | 5.7 | 13.0 | 50-200 | 2.5 | Grey/Black |
| CST-25 | Φ25 | 7.0 | 21.0 | 50-300 | 2.5 | Grey/Black |
| CST-28 | Φ28 | 9.0 | 23.0 | 50-300 | 2.5 | Grey/Black |
| CST-30 | Φ30 | 9.1 | 25.0 | 50-400 | 2.5 | Grey/Black |
| CST-35 | Φ35 | 10.4 | 30.1 | 50-400 | 2.5 | Grey/Black |
| CST-40 | Φ40 | 11.7 | 35.1 | 50-400 | 3.0 | Grey/Black |
| CST-45 | Φ45 | 12.7 | 40.0 | 50-450 | 3.0 | Grey/Black |
| CST-50 | Φ50 | 16.0 | 45.0 | 50-450 | 3.0 | Grey/Black |
| CST-55 | Φ55 | 18.2 | 49.2 | 90-800 | 3.0 | Grey/Black |
| CST-60 | Φ60 | 18.2 | 53.0 | 90-800 | 3.0 | Grey/Black |
Remark: The diameter, thickness and length can be customized
Technical Property
| Performance | Typical Value | Test Method |
| Hardness | 40A | ASTM D2240 |
| Tensile Strength | 10.3MPa | ASTM D 421 |
| Elongation | 990% | ASTM D 412 |
| Tear Strength | 41.6N/mm | ASTM D 624 |
| Brittle Temperature | ＜–40℃ | ISO 812 |
| Electric Strength | 23KV/mm | ASTM D 4325 |
| Volume Resistivity | 1.3×1017ΩNaN | ASTM D 4325 |
| Thermal Ageing | Pass | ASTM D 412 |
| Ozone Ageing | Pass | ASTM D 1149 |
| UV Ageing | Pass | ASTM G 154 |
| Sealing Class | IP67/68 | IEC60529-1989/2015 |
| Operation Temperature | -55 to +200℃ |
Storage Condition
It is recommended to store the silicone cold shrink tubes in a dry climate at a temperature of -40°C up to +50°C, Shelf life is specified with 12 month from date of manufacturing. After installation, the warranty is 24 month excluding human damage and out of specification requirement.
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