Fast Curing RTV Silicone Potting Compound 1:1 High Voltage for EV Battery Inverter Module

Fast Curing RTV Silicone Potting Compound 1:1 High Voltage for EV Battery Inverter Module

This two-component RTV addition-cure silicone potting compound uses a 1:1 mix ratio and cures fast at room temperature, or in about 0.2 hour at 80°C, into a high-performance grey elastomer. Engineered for high-voltage electrical insulation, it combines a 18-25 kV/mm dielectric strength and 1.0x10¹⁶ ohm.cm volume resistivity with 0.76 W/m·K thermal conductivity and a wide -50°C to +250°C range. It is ideal for potting and sealing EV battery inverters, power modules, high-voltage transformers, fast-charging adapters and LED drivers.

Key Features

• Fast Curing RTV — room-temperature vulcanizing, initial cure in 4-12 hours and 0.2 hour at 80°C for high throughput
• High Voltage Insulation — dielectric strength 18-25 kV/mm and volume resistivity 1.0x10¹⁶ ohm.cm for high-voltage power electronics
• EV Battery / BMS Potting — durable encapsulation for battery packs, inverters and battery management modules
• Thermally Conductive 0.76 W/m·K — effectively transfers heat from power components
• Low Viscosity & Flowability — penetrates dense layouts and deep cavities for void-free potting
• Wide Temperature Range -50°C to +250°C — excellent heat resistance and cold-environment stability
• Low Shrinkage, No By-products — addition cure releases no heat or corrosive by-products, safe for sensitive circuits
• 1:1 Mix Ratio — simple, accurate dosing for consistent production

Applications

• EV battery inverter and BMS module potting
• High-voltage transformer and power module encapsulation
• Fast-charging adapter and power supply sealing
• LED driver and circuit board protection

Supplied as Part A (grey fluid) and Part B (white fluid) in 10 KG, 20 KG and 50 KG sets with 6-month shelf life. Contact us for samples and OEM/ODM bulk pricing.

About this supplier

Shenzhen Hanast New Material Co., Ltd. is a premier high-tech enterprise and leading source manufacturer specializing in the R&D, manufacturing, and global supply of industrial silicone materials. As a strategic branch of the renowned Shenzhen Kanglibang Technology Co., Ltd., Hanast integrates over a decade of chemical adhesive expertise with a cutting-edge 40,000-square-meter modern production base (including our newly expanding Jiangmen facility) to deliver high-capacity, reliable material solutions worldwide.

We serve as a vital tier-one supplier and OEM/ODM partner for global factories, procurement managers, and engineering teams across diverse sectors, including electric vehicles (EV), battery energy storage systems (BESS), solar inverters, LED lighting, and industrial automation.

FAQ

1. Q: What level of electrical insulation does it provide?

A: It delivers high-voltage insulation with dielectric strength of 18-25 kV/mm and volume resistivity of 1.0x10¹⁶ ohm.cm, ideal for high-voltage power electronics.

2. Q: How fast does it cure?

A: It is a room-temperature-vulcanizing (RTV) system with initial cure in about 4-12 hours at 25°C, or roughly 0.2 hour at 80°C for high-throughput production.

3. Q: Is it suitable for EV battery and inverter potting?

A: Yes. It is engineered for potting and sealing EV battery inverters, BMS modules, power modules and high-voltage transformers, with a flexible low-stress cured elastomer.

4. Q: Does it manage heat and temperature extremes well?

A: Yes. It offers 0.76 W/m·K thermal conductivity and a wide -50°C to +250°C operating range, so it stays stable in both cold outdoor and hot operating conditions.

5. Q: Do you provide samples and OEM/ODM support?

A: Yes. We supply free samples and OEM/ODM bulk pricing for qualified projects — simply contact us with your application and volume requirements.