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최신 회사 사례 Shenzhen Hanast New Material co.,LTD 자격증

Protecting EV Charging Modules in Extreme Environments with UL94 V-0 Silicone Potting Compounds

2026-09-17

Quick Summary

A Southeast Asia EV charging infrastructure maker protected its outdoor charging modules with Hanast HN-8830A/B, a high-performance silicone potting compound for EV battery pack and power-electronics applications. The 3.0 W/m·K, UL94 V-0 material (1:1 mix ratio by weight) reduced field returns by 40% and passed damp-heat and salt-spray testing.

Background

The client designs and manufactures AC and DC EV charging modules deployed across Thailand, Vietnam, Malaysia, and Indonesia. Many units are installed outdoors near coastlines and busy highways, where internal power electronics face extreme heat, monsoon humidity, salt spray, dust, and constant vibration. As EV adoption accelerates across the region, charging uptime and safety have become critical.

Challenge

Moisture and salt-spray ingress damaging power electronics.
Heat buildup in densely packed, high-power, high-voltage modules.
Strict fire-safety requirements for public charging equipment.
Vibration from traffic and installation environments.
Previous encapsulation was too rigid and prone to cracking under temperature swings.

Hanast Solution

Hanast supplied HN-8830A/B, a two-component addition-cure (platinum-catalysed) silicone potting compound designed for high-power electronics. It offers a high thermal conductivity of 3.0 ± 0.1 W/m·K, a 1:1 mix ratio by weight, good fluidity and self-levelling, and UL 94 V-0 flame retardancy. The cured elastomer stays rubber-elastic from −40 °C to 200 °C, absorbing thermal expansion and vibration while sealing out moisture, salt, and contaminants.

Property	Specification (per TDS)	Customer Benefit
Product model	Hanast HN-8830A/B	High-power thermal potting solution
Mix ratio	1:1 by weight	Simple, accurate dispensing
Thermal conductivity	3.0 ± 0.1 W/m·K	Superior heat dissipation
Hardness (Shore A)	35 ± 8	Soft, elastic, crack-resistant
Volume resistivity	≥ 1.0 × 10¹⁴ Ω·cm	Reliable high-voltage insulation
Operating range	−40 °C to 200 °C	Stable in extreme conditions
Flame rating	UL 94 V-0	Enhanced fire safety
Cure	RT 4–8 h or 80 °C / 30 min	Flexible production scheduling

Typical Applications

The same product family serves the wider EV and automotive electronics ecosystem. It is used as:

Silicone potting compound for EV battery pack
Thermal conductive silicone gel for BMS (Battery Management System)
Potting adhesive for automotive electronic control units (ECU)

These applications help balance cell temperatures, improve pack safety, and protect control boards against heat, vibration, and contamination in vehicles operating in harsh tropical conditions.

Result / Data

Field return rate reduced by 40%.
The assembled module passed IP67 waterproof and UL 94 V-0 flame-retardant testing.
Passed extended damp-heat and salt-spray testing with no failures.
Assembly cycle time reduced through automated dispensing.
Deployment expanded to additional charging networks across the region.

Client Feedback

“The UL 94 V-0 compound sealed our modules against everything the tropics throw at them. Reliability improved noticeably and we now use it as standard,” said the client’s product manager.

About Hanast

Hanast (Shenzhen Hanast New Materials Co., Ltd.) is a China-based source factory for RTV-2 liquid silicone and potting compounds. Established in 2010 with a 40,000 m² production base and an export-driven business (70–80% overseas), Hanast supplies OEM/ODM encapsulation solutions to global B2B clients such as ABB, Apple, Foxconn, and BYD. Learn more at silicone-liquid.com.