Which Epoxy Resin to Use for Servo Motor Stator Potting?EP 1716 Is Engineers’ Top Choice Thanks to Four Key Performance Metrics
Every servo motor engineer knows that stator potting may seem straightforward, yet it is full of hidden pitfalls in real-world production. Heat generation, cracking, thermal expansion, and temperature resistance — any one of these issues can lead to scrapped batches of products. To make matters worse, countless potting adhesive brands flood the market with overwhelming technical datasheets. A wrong adhesive selection can even halt your production line. Today we cut to the chase and introduce a high-performance product tailored for servo motor stator potting: ELAPLUS EP 1716 thermally conductive two-part epoxy potting compound. Why this product? We break down its advantages against the four core requirements for servo motor stator potting one by one. 1. High Heat Generation? Thermal Conductivity Must Be Up to Standard Under high-speed and high-torque operating conditions, stator windings of servo motors generate massive heat. If the thermal conductivity of potting adhesive cannot keep up, heat accumulates inside the stator, reducing motor efficiency at best and burning out windings at worst. This is why thermal conductivity is the primary screening criterion for adhesive selection. Comparison of three products: ■ EP 1715: Thermal conductivity 0.6 W/mK ■ EP 1715(3#): Thermal conductivity 1.0 W/mK ■ EP 1716: Thermal conductivity 1.5 W/mK EP 1716 features 2.5-fold higher thermal conductivity than EP 1715 and 50% higher than EP 1715(3#). In practical applications, this means internal stator heat dissipates faster to the housing, lowering motor temperature rise and greatly improving reliability during continuous operation. For high-power-density servo motors, a thermal conductivity of 1.5 W/mK delivers tangible competitive edge. 2. Cracking Under High–Low Temperature Cycling? Aging Test Data Speaks for Itself Servo motors operate in far harsher environments than laboratory conditions. From cold storage with temperatures dropping to tens of degrees below zero in northern China, to hot‑humid workshops in southern China, or sharp temperature fluctuations caused by frequent…
