Two-component epoxy potting compounds consist of a resin and a curing agent and must be mixed in the specified ratio before use. This type of material… It possesses excellent insulating properties, effectively preventing the coil from becoming damp, short-circuiting, or being contaminated by external factors. Meanwhile, the protective layer formed upon curing exhibits high mechanical strength, enabling it to withstand vibration and impact and ensuring stable motor operation under demanding operating conditions. 

During the potting process, the encapsulant fully fills the microscopic gaps between the windings, expelling air and preventing partial discharge. This not only enhances the motor’s electrical performance but also reduces energy losses during operation. 

In addition, epoxy potting compounds exhibit excellent thermal stability, maintaining consistent performance under high-temperature conditions and preventing material degradation or cracking caused by temperature fluctuations. 

Hinnel specializes in the research, development, and production of epoxy adhesives for motor stators, and has launched HNEP A series‑specific product line, covering applications such as full‑vacuum potting of the stator and high‑strength bonding of coil slot wedges and lead wires. The colloid exhibits excellent thermal conductivity and heat dissipation, resists cracking at high temperatures, and provides reliable insulation and flame retardancy. Suitable for stators of new-energy vehicle motors, industrial brushless motors, and household fans and water pumps; customizable to meet the performance requirements of automated production lines. 

The motor stator potting compound products are as follows: 

【 HN6220D Epoxy potting compound】 

HN6220D Epoxy potting compounds offer numerous outstanding advantages: after mixing the two components, they exhibit moderate viscosity and excellent flowability, readily eliminate air bubbles, and possess self-leveling properties. The product supports rapid curing at low temperatures, with minimal exothermic heat generation and extremely low shrinkage. After curing and shaping, it can withstand high temperatures for extended periods. 155℃ , with excellent resistance to high- and low-temperature cycling, Effectively prevents colloid cracking, ensuring the long-term operational stability and reliability of the motor stator. 

【HN6223D Epoxy potting compound】 

HN6223D Epoxy potting compounds exhibit excellent overall performance. After mixing the two components, they offer moderate viscosity and outstanding leveling properties, with bubbles that are easy to eliminate and superb self-leveling characteristics. The product supports rapid curing at low temperatures, with low exothermic heat during cure and extremely low molding shrinkage. Following cure, the cured resin achieves a glass transition temperature as high as… 200℃ , with a low coefficient of thermal expansion, it can withstand prolonged exposure. 250℃ It withstands high temperatures and exhibits excellent resistance to thermal cycling, minimizing the risk of cracking. It provides robust protection for the motor stator, making it well-suited for long-term continuous operation. 

【HN6225D Epoxy potting compound】 

HN6225D Epoxy potting compound boasts excellent overall performance. After mixing the two components, it exhibits moderate viscosity, excellent leveling, and easy bubble elimination, with inherent self-leveling properties. This product can be rapidly cured by low-temperature heating, featuring low exothermic heat during curing and extremely low shrinkage; once cured… Colloids up to 200℃ High temperature resistance, excellent performance under high–low temperature cycling, and resistant to cracking. Effectively ensures the motor stator operates reliably under long-term service conditions without failure. 

【HN6228D Epoxy potting compound】 

HN6228D Epoxy potting compounds exhibit excellent overall performance. After mixing the two components, they offer moderate viscosity, excellent flowability, and easy bubble elimination. The product can be rapidly cured by low‑temperature heating, with low exotherm and extremely low shrinkage. Once cured, it provides long‑term resistance to… 155℃ It withstands high temperatures and boasts a high thermal conductivity, delivering excellent heat dissipation. It resists degradation under repeated thermal cycling, ensuring long‑term, stable operation of the motor stator. 

【HN6330D Epoxy potting compound】 

HN6330D Epoxy potting compounds exhibit outstanding processing performance: during preheating and heat‑curing of the two‑component system, they resist sedimentation; after mixing, they maintain a moderate viscosity with excellent flowability, and air bubbles are readily eliminated. After curing, the glass transition temperature of the colloid can reach 195℃ In summary, it has a low coefficient of thermal expansion and can withstand prolonged exposure. 220℃ High temperature resistance, excellent performance in high–low temperature cycling and crack resistance, It simultaneously exhibits excellent electrical insulation and flame-retardant properties, providing long-lasting insulating and sealing protection for motor stators and ensuring the equipment’s continuous, reliable operation. 

Hinnel HN Parameter Comparison Table for Epoxy Potting Compound for Series Motor Stators: 

Common misconceptions: 

Misconception 1: Neglecting to match the adhesive’s pot life with the amount of work to be done.  

Incorrect approach: After mixing a large bucket of adhesive, apply it slowly and steadily within the applicable working time. 

The correct understanding is: The pot life of epoxy encapsulant refers to the limited period during which it maintains a workable viscosity. Pouring and leveling must be completed within this time frame; otherwise, the adhesive’s viscosity will increase, its flowability will deteriorate, and the quality of the encapsulation will be compromised. Mixing should be carried out in batches, with each batch sized to match the amount that can be processed in a single operation. 

Misconception No. 2: Believing that “ Flame retardant ” equals “Completely” Fire prevention ” , ignoring the overall design.  

Incorrect approach: Overreliance on the flame retardancy of potting compounds has led to the neglect of potential risks posed by other non‑flame‑retardant materials inside the motor, such as certain lead wires and cable sleeves. 

The correct understanding is: The flame-retardant properties of potting compounds are a critical component in enhancing system safety; however, motor fire safety is a systems‑level challenge that requires comprehensive consideration across material selection, structural design, temperature‑rise management, and other factors. 

Overall, two-component epoxy potting compounds provide comprehensive protection for motor stator windings and represent a key solution for enhancing motor performance and reliability. By selecting appropriate components and ensuring proper installation, the service life of the motor can be significantly extended, and maintenance costs can be reduced.

Note: Some content is sourced from the internet; please contact us for removal if there are any infringements.

°   Send an email to sales@hinnel.com Email box ;

°   Whatsapp:  86- 18301723907.