Polyurethane Potting Compound
- CCMT
- CHANGCHUN,CHINA
- Based on the order quantity
- 500,000 meters per month
1. The product offers outstanding insulation and anti-moisture qualities; it creates an effective protective layer when cured and enhances the functional reliability of cable joints and electronic components.
2. It has low viscosity and high fluidity, making it very easy to pour and fill into cavities, and is well bonded with both metallic and non-metallic materials.
3. This cable joint compound has low hygroscopic behavior and high environmental resistance, hence is adaptable to different temperature conditions and suitable for sealing and protection over a prolong period.
Cable joints, electronic components and other types of equipment are often exposed to underground, outdoor or humid environments. The elements of moisture, dust and environmental stress can easily make their way into the interiors resulting in reduced insulation performance, connection failures and equipment damage in the shortest possible time. Conventional sealing methods cannot adequately fill the gaps of intricate shapes and are not capable of the kind of protection that will last for years.
We have created an exceptional urethane potting compound with a dual-component formulation allowing for a great amount of spreading and filling after mixing. These potting compounds are able to get to the deepest part of the gaps in joints without leaving any residue. Besides metal, they also work with non-metallic surfaces, and hence make a secure connection. Once dried, they result in an unbroken sealing layer, moisture and foreign particles will just be rejected, and hence protection against moisture and mechanical damage will be ensured on an ongoing basis by moisture-proof, insulating, and the mechanical protection of cable joints, electronic components, and electrical equipment.
Introduction to Cable Potting Glue:
Urethane potting compounds are two-part polyurethane sealants which, once mixed and poured, harden to form a strong protective layer. It serves to provide insulation, moisture protection, dustproofing, and shock absorption protection for cable joints, electronics, and electrical equipment, respectively. It is wellsuited for challenging situations like being under ground, in the water, or outdoors.
Product Performance Parameters:
Test Item | Test Condition | PU Potting Compound | |
Pigment | Visualization | Brown liquid | Black,viscous liquid |
Dynamic Viscosity | 25℃ , mPa · s | 100~250 | 500~900 |
Density | 25℃ , g/ml | 1.2±0.05 | 1.00±0.05 |
Mixing Ratio | Proportion by weight | 45 :100 | |
Gel Time | 25℃ , min | 15~25 | |
Curing Conditions | ℃/h | 25/10h | |
Hardness | Shore-A,25℃ | 90±5 | |
Water Absorption | 24h,25℃ , % | <0.2 | |
Mass Resistivit | 25℃ , Ω ·cm | >1.0×1013 | |
Insulation Strength | 25℃ , kV/mm | >20 | |
Temperature Limit | ℃ | ﹣40~130(Class B) | |
Storage Life | Sealed at room temperature | Six months | |
Advantages of Cable Potting Glue:
1. Highly efficient potting and filling, enhancing the sealing and protection capabilities of cable joints.
The cable connection compound is based on a two-component polyurethane formula which when mixed presents good flow and filling behavior. It is able to completely fill in the cavity inside cable joints and after curing will form a uniform protective sealing layer, thereby effectively keeping out moisture, dust, and foreign objects from the exterior.
2. Excellent insulation performance, ensuring safe operation of cable connections.
The polyurethane potting resin has stable and lasting electrical insulation properties after curing. It is an ideal choice as the internal insulation protection for the cable joints as it helps protect the equipment against water intrusion, partial discharge, and loss of insulation performance. The product is recommended for use in the low to medium voltage cable joint protection.
3. Flexible and shock-resistant, adaptable to complex operating environments.
After the resin is hardened, it still has good elasticity and cushioning capacity, which can absorb mechanical vibrations and external impacts of the cable during operation, and it also protects the cable from seal failure caused by the cable's thermal expansion and contraction or mechanical strain, and it keeps protecting cable joints in a very reliable way.
4. Convenient on-site construction, quickly completing the potting operation.
This product has an independent two-component sealed packaging, thus eliminating your need for extra metering devices. You just take the clip off and knead it until fully mixed, within 3 minutes the mixing is complete and you can use the mixture.
5. Stable storage performance, meeting the inventory needs of engineering projects.
In a storage environment of 20℃–25℃ and relative humidity <70%, cable joint filling resin has a shelf life of up to 12 months, facilitating bulk purchasing and inventory management for power engineering, cable accessory manufacturers, and distributors.
Applications of Cable Potting Glue:
Cable polyurethane potting glue, a material with excellent electrical insulation properties, low viscosity and high fluidity, good adhesion capability to various materials and low water absorption characteristics is extensively utilized in the fields of cable connectors, electrical sockets, electronic devices, new energy appliances, industry controllers, and automotive electric systems as a medium for delivering insulation, moisture resistance, sealing, and mechanical protection to the equipment in a highly efficient manner.
We also sell resin cable joint kits.
About Us:
Since its establishment in 1986, our company has been dedicated to the technological research and development and manufacturing of cable accessories, accumulating over forty years of professional experience in this field. Currently, we have a modern factory covering more than 10,000 square meters, with over 200 employees and more than 40 sets of various professional production equipment. Among them, we have four sealant extrusion production lines specifically for waterproof insulating sealant tape, with a monthly output of up to 500,000 meters. The total monthly production capacity of our entire product line is consistently at the million-meter level.
In terms of technological research and development, we have long relied on the research strength of the Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, continuously optimizing our product development system. We have passed ISO 9001:2015 quality management system certification (No.: 00123Q36311R5M/2200). Simultaneously, our products have obtained CE, SGS, IEC, and other certifications, and fully comply with international environmental standards such as RoHS and REACH.
Regarding quality control, all products undergo third-party type testing and are subject to full-process inspection by the company's independent quality control department. Detailed test reports are provided with each product upon shipment to ensure consistent and reliable performance, while meeting relevant international standards. Furthermore, we possess flexible customization capabilities, offering OEM processing services for diverse products according to customer requirements, fully responding to individual needs.
International Market Cooperation Experience:
In terms of cooperation with internationally renowned companies, we have provided tens of thousands of meters of high-performance three-layer co-extruded heat-shrinkable composite tubing for Raychem, customized tens of thousands of rolls of special insulating tape for 3M, supplied nearly one million meters of low-voltage heat-shrinkable tubing for ABB, and provided tens of tons of potting compound for Shell. These collaborations fully reflect the high recognition international customers have of our product quality and service responsiveness.
Exhibition Participation:
In 2025, our company participated in the Shanghai International Power Equipment and Technology Exhibition. This exhibition showcased our technical strength and product portfolio in the field of cable accessories, effectively enhancing brand visibility in the domestic and international power markets.
FAQ:
1. Is polyurethane potting compound suitable for outdoor or humid environments?
Yes. The product has low water absorption and good environmental resistance, making it suitable for long-term sealing and protection in underground, outdoor, and humid environments.
2. What materials can cable polyurethane potting glue bond to?
The product has good adhesion to metals, plastics, and many non-metallic materials, meeting a variety of potting needs.
