2026-09-11
Southeast Asia’s energy storage market is expanding quickly, driven by solar adoption, grid stability projects and portable power demand. Energy storage systems (BESS), outdoor power supplies and high-voltage transformers must operate reliably outdoors for years despite intense heat, humidity and monsoon rain. This case study describes how the two-component silicone potting compound HN-8806A/B-2 delivered durable encapsulation for a regional energy storage manufacturer.
The customer produces battery energy storage modules and outdoor power supply units for residential, commercial and telecom backup applications across Southeast Asia. Its products are installed in coastal and tropical environments where moisture, salt air and temperature swings are severe, and where a single electrical fault can compromise an entire storage installation.
HN-8806A/B-2 is a double-component, room-temperature or heat-curing silicone filling glue that cures into a high-performance elastomer. It provides excellent electrical performance, ageing resistance, wide temperature tolerance, heat conduction, moisture-proofing and deep curing with very low shrinkage. It releases no heat or by-products, does not corrode sealed components, and meets RoHS and related environmental requirements — ideal for long-life energy storage hardware.
| Property | Standard | Result |
|---|---|---|
| Colour (A / B) | Visual | White liquid / Dark grey liquid |
| Density (25°C) | GB/T 13354-92 | 1.66 ± 0.05 g/cm³ |
| Mixing ratio (A:B, by weight) | — | 100 : 100 |
| Hardness | GB/T 531.1-2008 | Shore A 55 ± 5 |
| Thermal conductivity | GB/T 10297-1998 | ≥ 0.76 W/m·K |
| Coefficient of expansion | GB/T 20673-2006 | ≤ 210 μm/(m·°C) |
| Water absorption (24h, 25°C) | GB/T 8810-2005 | 0.01–0.02 % |
| Volume resistivity (DC 500V) | GB/T 1692-92 | 1.0 * 1016 Ω·cm |
| Dielectric strength (25°C) | GB/T 1693-2007 | 18–25 kV/mm |
| Temperature tolerance | Measured | –50 °C ~ +250 °C |
| Flame retardancy | UL 94 | V-0 |
Components A and B, supplied in 25 kg barrels at a 100:100 ratio, were stirred evenly before use and mixed thoroughly in a clean container, then vacuum de-gassed to remove bubbles. For automated filling, both parts were evacuated for 5–10 minutes and proportioned to a static mixer with metering pumps, delivering a consistent ratio and uniform fill across energy storage modules. Sub-assemblies were cleaned, potted in parts where size demanded, and cured at room temperature (1–2 hours) or at 80°C for 0.2 hours.
Using HN-8806A/B-2, the customer improved the reliability, safety and service life of its energy storage systems and outdoor power supplies, while making automated potting more efficient. For Southeast Asia’s fast-growing storage market, high-performance silicone encapsulation is a proven way to build more durable, export-ready products.