Epdm Cold Shrink End Cap
- CCMT
- CHANGCHUN,CHINA
- Based on the order quantity
- 30,000 per month
1. The cold shrink EPDM cable end cap is built from high-performance EPDM material; it features superior insulation, weather resistance, and is environmentally friendly.
2. The cold shrink EPDM end caps rely on a kind of pre-expanded technique, enabling quick shrinkage and good adherence of the cap to the cable end without the necessity for any heating devices.
3. In general, the EPDM cold shrink cable end cap is employed for the insulation of and protection against moisture, dust, and environmental elements of the end of power cables.
Due to being in an outdoor power system and having such complex operating conditions, cables ends frequently meet with moisture, dust, UV rays, and changes of temperature. Aging, weakening or a loss of the seal are the most common results of traditional sealing methods thus leading to the moisture entering the cable and the stability of the system affected.
Our Professional Solution:
The EPDM rubber end cap is a sealing, insulting, and protective end piece for cables, made of high-quality Ethylene Propylene Diene Monomer (EPDM) rubber. Using pre-expansion process, the cap contracts to the correct size after the core which was placed for support purpose is taken out, by using the elasticity of raw rubber to tightly close the end of the cable - everything is done at a glance and without needing to apply heat tools.
Designed in a cold shrink style, the EPDM rubber end cap provides great protection from heat. Also it has high resistance to water, dust, and even physical damage. In addition, it is very durable to chemical and sunlight exposure. It's able to cover up the cables very well and therefore protect it from the outside environment in a long period of time. In power distribution cables and outdoor electrical installations it is very common to find them.
Product Specifications:
Item | Test Standard | Typical Value |
Color | black | black |
Tensile Strength | ASTM D412-75 | ≥8.0Mpa |
Elongation | ASTM D412-75 | ≥450% |
Tear Strength | ASTM D624C-73 | ≥27KN/m |
Bacterial Resistance | ASTM G21 | No growth |
Moisture Absorption | 7 days in 90°C water | Weight increase≤5% |
24hours in 90°C water | Weight increase≤5% |
Product Advantages:
1. Heat-free installation enhances safety and efficiency.
The EPDM cold shrink end cap utilizes pre-expanded cold shrink technology. Installation requires no heating tools—such as heat guns or torches—simply removing the internal support core allows the cap to shrink automatically and fit snugly around the cable end. It is ideal for environments with strict fire safety requirements or limited installation space, such as petrochemical plants, mines, and tunnels.
2. Superior EPDM material properties ensure long-term, stable operation.
Made from high-performance EPDM, the cold shrink cable end cap provides outstanding resistance to aging, weathering, and chemical corrosion. Moreover, it is also able to resist severe situations such as outdoor exposure, temperature changes, and industrial pollution.
According to ASTM D412-75 norms, a sample testing is done, and the characteristics like the tensile strength (which is ≥8.0 MPa), elongation (which is ≥450%) and tear strength (which is ≥27 kN/m) are very well retained. Owing to its excellent elasticity the seal between the cable insulation and the endcap is constantly under radial shrinkage pressure which makes it very reliable and longlasting and hence cable maintenance and replacement are done only seldom.
3. Efficient protective sealing against harsh environments.
Upon shrinking, the EPDM rubber end cap forms a uniform, tight seal that effectively prevents moisture, dust, oil, and other contaminants from entering the cable. With a weight increase of ≤5% after immersion in 90°C water for 7 days and 24 hours (demonstrating low moisture absorption), the cap offers reliable environmental protection. This minimizes the risk of moisture ingress, corrosion, and insulation degradation at the cable end, ensuring stable performance in outdoor power distribution systems, industrial equipment, and complex engineering environments.
4. Excellent electrical insulation properties enhance system reliability.
The cold shrink EPDM rubber end cap comes with excellent insulation characteristics and resistance to electrical aging; this ensures continuous and dependable insulation protection of the cable ends. The cold shrink method of sealing helps to minimize the number of defects that seal caused by the installation error and thus increases the safety and service life of the cable termination.
Product Applications:
· Power distribution systems and cable termination protection: These are used in distribution networks of medium- and low-voltage for sealing and insulation protection of XLPE-insulated cables and other power cables. Cable insulation protection for industrial equipment and manufacturing plants: For protecting motor leads, control cabinets, electrical equipment, and cable connections within automatic production lines.
· Uses in communication networks and data centres: Provide protection for fiber optics and cable connections in communication tower, outdoor cabinets, data centre, and network hardware.
· Cable protection for outdoor and harsh environments: Suitable for long-term outdoor operation, such as in renewable energy facilities, transportation infrastructure, mining operations, and coastal electrical equipment.
Why Choose Us?
Ever since we opened in 1986, all our efforts have revolved around R&D, production, and distribution of cable terminations and protection against insulation damage devices. Thanks to almost 40 years of hands-on experience, we can fully control quality through a variety of production machines and a streamlined organization that enables a monthly output of 30,000 items (quantity is subject to product type; if needed, get in touch to have an accurate estimation).
We satisfy the needs of many different types of clients, from trial runs and limited-time orders to a huge number of production pieces. We guarantee that there is no time lost in delivery because it is the result of a very modern production site whose area is more than 10,000 square meters, 200+ team of skilled staff and over 40 types of sophisticated production machinery.
Quality Management Standards.
We work with the Changchun Institute of Applied Chemistry (Chinese Academy of Sciences) continuously in order to improve our products' performance, as well as our technological capabilities. We take full advantage of the research facilities that the Institute provides and thus, we are able to constantly come up with better materials and manufacturing processes, in this way we continue to strengthen our R&D system. We are a proud ISO 9001:2015 certified company (No. 00123Q36311R5M/2200).
Partnerships.
Our products currently serve markets in the Middle East (e.g., Saudi Arabia, Iran), Southeast Asia (e.g., India, the Philippines), South America (e.g., Brazil, Argentina), and Europe.
International Exhibitions.
By attending business international exhibitions, we aim to be up-to-date with overseas customers' needs and improve our communication with them. During the years 2023-2025, among others, we attended Hannover Messe, the Mexico Electricity Exhibition, Middle East Energy (Dubai), and the Shanghai International Electric Power Equipment and Technology Exhibition.
Not only do we work closely with power utilities, engineering companies, distributors, and the end users of the products themselves from all corners of the world through these platforms, but also they allow us to discuss various aspects of sample testing, project joint ventures, and large-scale purchases together.
FAQ:
1. How do I select the right specifications for cold shrink EPDM end caps?
Selection is based on the cable's outer diameter, voltage rating, and application environment; we can provide tailored solutions to meet specific customer requirements.
2. What advantages do cold shrink EPDM end caps offer compared to traditional sealing methods?
Quick and easy installation is one of its features, as well as reliable sealing and excellent insulation. The latter two are highly effective in preventing moisture, dust, or other contaminants from infiltrating the cable ends.
