HONG YE SILICONE Electronic Potting Compound for EV Components is a high-performance addition-curing potting material, specially engineered for electric vehicle (EV) electronic components protection. It cures after mixing Component A and B (customizable ratio), featuring excellent high-temperature resistance (-60℃ to 220℃), anti-vibration, high insulation and environmental friendliness. As a core product matching our liquid silicone, RTV 2 Silicone Rubber, Industrial mold silicone rubber, Pad Printing Silicone and Silicone Encapsulant, it protects EV components from moisture, corrosion and vibration, ensures stable operation, meets EU ROHS and automotive industry standards, with 1-year shelf life, customizable parameters and multiple packaging options for bulk EV component production.
Product Overview
Our Electronic Potting Compound for EV Components, also called potting gel, electronic silicone or encapsulation silicone, is a professional addition-curing potting material tailored for EV electronic components, a key part of HONG YE SILICONE’s full silicone product matrix. It is a two-component material that cures into a dense, high-strength protective layer after adding curing agent, designed to solve EV components pain points—extreme temperature fluctuations, road vibration, battery corrosion and high-voltage insulation risks. Unlike ordinary Electronic Potting Compound, it meets strict automotive-level requirements, ensuring long-term reliable protection for critical EV components. Product Features & Advantages
1. EV-specific wide temperature adaptability: Operates stably from -60℃ to 220℃, resisting extreme high temperatures from EV batteries and motors, as well as low-temperature environments, absorbing thermal stress to protect chips and welding gold wires from damage.
2. Automotive-grade anti-vibration & high strength: Low volatile content, high structural strength, cures into a flexible yet durable layer, effectively absorbing road vibration and impact, preventing EV components from loosening or damage during driving.
3. Superior high-voltage insulation & corrosion resistance: Volume resistivity ≥1.0×10¹⁶ Ω·cm, dielectric strength ≥25 kv/mm, ensuring safe operation of high-voltage EV components (battery modules, controllers); excellent anti-ozone and chemical corrosion resistance, resisting battery electrolyte erosion.
4. Strong adhesion & EV substrate compatibility: Excellent adhesion to EV-used materials—PC, PMMA, PCB, CPU and metals (aluminum, copper, stainless steel), firmly bonding EV electronic components without peeling, ensuring structural stability.
5. Addition-curing & customizable: Solvent-free addition-curing formula, environmental friendly, no harmful by-products; hardness, viscosity, operation time and mixing ratio can be customized to match different EV component types and production processes.
Technical Specifications
This product is a two-component addition-curing electronic potting compound for EV components, with Component A and B both being viscous liquids (settled fillers included). The mixing ratio of A and B can be customized according to EV component requirements; operable time is adjustable (30-120 minutes), full curing time is 24 hours (room temperature or heating curing optional). It operates stably from -60℃ to 220℃, with high insulation, strong adhesion and anti-vibration performance. All parameters (hardness, viscosity, curing speed) can be customized to meet automotive-level EV component requirements.
How to Use
1. Preparation: Fully stir Component A in its container to mix settled fillers evenly; shake Component B thoroughly to ensure uniform material composition without stratification, critical for EV components’ high-temperature and anti-vibration performance.
2. Mixing: Blend Component A and B strictly according to the customized weight ratio, stir thoroughly to guarantee consistent insulation, anti-vibration and curing performance for EV electronic components.
3. Deaeration (Optional): After mixing evenly, place the glue into a vacuum container and deaerate for 3 minutes under 0.01MPa to remove air bubbles, avoiding high-voltage breakdown or component damage caused by bubbles.
4. Potting & Curing: Pour the treated silicone onto EV components (battery modules, controllers, PCBs); cure at room temperature or heat to accelerate. Proceed to the next process after basic curing, and ensure 24 hours for full curing to achieve optimal automotive-level protection.
Application Scenarios
Widely used for potting, sealing, filling and pressure protection of EV electronic components, including EV battery modules, motor controllers, on-board chargers (OBC), DC-DC converters, PCB boards and CPU components. It is suitable for encapsulating critical electronic components in electric vehicles, effectively isolating moisture, battery electrolyte corrosion and road vibration, ensuring stable operation of EV systems. It reduces EV component failure rates and after-sales costs, enhances product reliability and market competitiveness for EV component manufacturers.
Certifications and Compliance
HONG YE SILICONE holds ISO9001 quality management system certification, CE and UL certifications. Our Electronic Potting Compound for EV Components fully complies with EU ROHS environmental directives and international automotive electronic material standards, meets the strict requirements of global EV markets for high temperature resistance, insulation and environmental protection, facilitating smooth import and reliable application in international EV projects.
Customization Options
We provide professional OEM customization services focused on EV components needs. According to customers’ EV component types (battery modules, motor controllers) and automotive production requirements, we can customize key parameters such as Component A/B mixing ratio, cured hardness, viscosity, operable time and curing speed, optimizing high-temperature resistance and anti-vibration performance to meet personalized bulk procurement needs.
Production Process
The product undergoes strict multi-link quality control: high-quality automotive-grade Silicone raw materials inspection → precise formula mixing (optimized for EV high-temperature and anti-vibration needs) → automated production and filling → pre-production sample performance testing (targeting EV working scenarios) → full inspection of finished products before shipment. Our professional QC team monitors the whole process, ensuring consistent automotive-level protection performance of each batch. FAQ
Q1: What packaging specifications are available? A1: Multiple specifications (5kg, 20kg, 25kg, 200kg) optional, suitable for small-batch EV component sample testing and large-batch mass production.
Q2: How to store unused potting silicone? A2: Seal and store Component A and B separately in a cool, dry place; mixed glue should be used up at one time; stratified colloid can be stirred evenly before use, no impact on performance.
Q3: Is it suitable for EV battery module potting? A3: Yes, it has excellent high-temperature resistance (-60℃ to 220℃) and corrosion resistance, resisting battery electrolyte erosion, ensuring safe and stable operation of battery modules.
Q4: Is it a hazardous material for transportation? A4: Non-hazardous, can be transported as general chemicals, complying with international transportation standards for EV production materials.
Q5: Can it withstand EV road vibration? A5: Yes, it cures into a flexible, high-strength layer, effectively absorbing road vibration and impact, preventing EV components from loosening or damage during long-term driving.
Shenzhen Hong Ye Jie Technology Co., Ltd
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