Latest company case about Shenzhen Hanast New Material co.,LTD Certifications

An EV charging-pile manufacturer adopted a low-density epoxy potting compound to encapsulate the internal power and control electronics. The solution lowered unit weight and sealed the circuits against rain, dust, and road vibration, improving the reliability of outdoor charging infrastructure.

AC and DC charging piles are installed in outdoor parking areas, highways, and curbside locations. They face continuous exposure to rain, humidity, dust, and temperature extremes, and their internal power modules vibrate during operation and transport. Compact, lighter charging-pile designs are increasingly demanded by operators to simplify installation and reduce structural load.

• Protect power modules and control boards from rain and high humidity
• Prevent dust and airborne particles from reaching live circuits
• Withstand vibration and shocks in outdoor transit and use
• Reduce weight for easier handling and installation
• Preserve insulation, flame safety, and RoHS compliance

The customer used a low-density, two-component epoxy potting compound to fully encapsulate the charging pile's power and control assemblies. Its low viscosity allows complete penetration into tight gaps around high-voltage and low-voltage circuits, eliminating air voids that could cause partial discharge. The low-density formulation keeps the added weight to a minimum, helping the operator meet lightweight design targets. Once cured, the compound forms a hard, glossy, bubble-free body with strong dielectric insulation, moisture proofing, and resistance to humid-heat ageing.

1. Pre-mix and accurately weigh both components.
2. Mix thoroughly and degas under vacuum if required.
3. Pour into the clean, dry charging-pile housing within the pot life.
4. Cure at room temperature or with heat acceleration.
5. Inspect for full coverage and voids before final assembly.

• Reduced charging-pile weight, simplifying outdoor installation.
• Rain, humidity, and dust ingress eliminated in field testing.
• No partial discharge or insulation faults after humid-heat ageing.
• Improved reliability and lower maintenance for public charging networks.

Q: Can low-density epoxy potting handle outdoor EV charging conditions?
A: Yes. It seals electronics against rain, humidity, and dust and withstands vibration, making it suitable for outdoor charging piles.

Q: How does potting help meet lightweight charging-pile design goals?
A: A low-density formulation adds minimal mass while fully encapsulating the circuits, so weight targets are easier to achieve.

Low-density epoxy potting helps EV charging-pile makers deliver lighter, more durable outdoor equipment. By protecting core circuits from moisture, dust, and vibration, the compound ensures safe and reliable operation of outdoor charging infrastructure.