Flexible Silicone Electronic Potting Gel Two Component 1:1 Waterproof for Solar Inverter BESS Power Encapsulation

Product Overview

HN-8806 is a flexible two-component 1:1 addition cure silicone electronic potting gel specifically developed for solar inverter PCB protection and BESS (Battery Energy Storage System) power module encapsulation. With its low-viscosity deep-section curing capability, IP67-equivalent waterproof sealing, and 0.76 W/m·K thermal conductivity, it provides comprehensive environmental protection for renewable energy power electronics. The flexible Shore A 50±5 elastomer after curing absorbs thermal expansion stress, preventing PCB component damage in outdoor solar installations. RoHS compliant, UL 94 V-0 flame retardant, and available in factory-direct bulk supply.

Key Features for Solar Inverter & BESS Applications

• ✅ IP67 Waterproof Protection — Superior moisture and water ingress resistance for outdoor solar inverter installations exposed to rain, humidity, and condensation
• ✅ Deep Section Curing — Low-viscosity formulation cures uniformly in thick sections without exotherm or by-products, ideal for densely packed BESS power modules
• ✅ Flexible Elastomer After Cure (Shore A 50±5) — Absorbs thermal expansion and contraction stress, preventing solder joint fatigue in solar inverter PCBs
• ✅ 0.76 W/m·K Thermal Conductivity — Efficient heat transfer from power semiconductors in solar MPPT controllers and BESS DC-DC converters
• ✅ Low Shrinkage & Non-Corrosive — Zero corrosion to sensitive SMD components, copper traces, and aluminum substrates during and after curing
• ✅ UL 94 V-0 Flame Retardant — Critical safety compliance for energy storage systems installed in residential and commercial buildings
• ✅ 18-25 kV/mm Dielectric Strength — Robust high-voltage insulation for 1000V/1500V solar string inverter architectures
• ✅ 1:1 Simple Mix Ratio — Compatible with both manual potting and automated meter-mix dispensing for high-volume solar inverter production lines

Technical Specifications

Target Applications

Why Silicone Gel Over Epoxy for Solar & BESS

Silicone gel's flexibility absorbs thermal cycling stress in outdoor solar applications, while its repairability allows PCB rework — a critical advantage epoxy cannot offer. The deep-section cure capability enables single-pour encapsulation of tall BESS power modules without layered potting.

Packaging & Ordering

Standard kit packaging: 10kg/Set (A:5kg + B:5kg), 20kg/Set (A:10kg + B:10kg), 50kg/Set (A:25kg + B:25kg). Export-grade moisture-proof packaging. Minimum order: 10kg. Factory-direct wholesale from 40,000 sqm production base with 50,000 kg monthly capacity. Store in cool dry place at room temperature. Shelf life: 6 months. Non-toxic, non-dangerous goods. MSDS and TDS provided with every shipment. Contact us for volume pricing, custom formulations, and free sample evaluation.