Transparent Flexible Silicone Potting Compound HN-8808 ODM High Temperature Resistant for Outdoor Electronics Protection
HN-8808 is a transparent two-component silicone potting compound that cures to a flexible 25 Shore A elastomer with outstanding substrate adhesion. Specifically engineered for outdoor electronics facing extreme thermal cycling from -57°C to 250°C, it maintains bond integrity and dielectric protection through seasonal temperature swings, UV exposure, and humidity. Full ODM customization available for hardness, viscosity, and adhesion profile.
Cures to a compliant Shore A 25 elastomer that flexes with the PCB and housing during thermal expansion and contraction. Strong primerless adhesion to aluminum, iron, acrylic, and PC substrates keeps moisture out while allowing the assembly to breathe through temperature swings—no cracking, no delamination, no rework.
One of the widest temperature envelopes in its class. Stays flexible at arctic lows without embrittlement, and maintains dielectric integrity at sustained 250°C exposure. Ideal for outdoor telecom equipment, solar farm electronics, and desert-environment industrial controllers where daily temperature swings exceed 40°C.
Superior moisture resistance with ≥ 1×10¹⁴ Ω·cm volume resistivity and 18-25 kV/mm dielectric strength. Non-yellowing transparent formulation resists UV degradation. Proven in outdoor LED street lighting, weather station electronics, 5G small cell outdoor units, and agricultural sensor networks.
At only 0.98 specific gravity, HN-8808 adds minimal weight to the finished assembly. Critical for drone electronics, portable outdoor equipment, and weight-sensitive aerospace applications. Lower density also means reduced shipping costs per unit volume compared to standard 1.2-1.6 SG potting compounds.
Full ODM service: tailor hardness (softer or firmer), viscosity (thinner or thicker), color (transparent, white, grey), adhesion profile, and cure speed to your exact manufacturing requirements. Sample batches in 3-5 working days. Multi-ton production capacity with ISO 9001 quality control.
Outstanding breakdown voltage rating protects high-voltage outdoor electronics from electrical discharge. Low dielectric constant of 2.5-3.0 at 1 MHz minimizes signal distortion in RF communication equipment. Dielectric loss ≤4×10⁻³ ensures power efficiency in switching circuits.
| Application | Use Case | Why HN-8808 |
|---|---|---|
| Outdoor LED Lighting | Street light drivers, floodlight modules, tunnel lighting controllers | Non-yellowing transparent, UV-stable, -57°C to 250°C range |
| Telecom Base Stations | 5G remote radio units, outdoor small cells, microwave backhaul | 18-25 kV/mm dielectric, low 2.5-3.0 Dk, weatherproof sealing |
| Solar & Wind Energy | Micro-inverter PCBs, MPPT controllers, wind turbine pitch control | Flexible adhesion survives thermal cycling, 0.98 lightweight |
| Agricultural & Marine | Irrigation controllers, GPS trackers, marine navigation electronics | IP67 moisture barrier, salt-spray resistant, non-corrosive cure |
| Property | Value |
|---|---|
| Appearance | Transparent / White / Grey liquid |
| Viscosity A / B | 2000 mPa·s / 50 mPa·s |
| Specific Gravity | 0.98 |
| Mixing Ratio | 10:1 (A:B by weight) |
| Hardness | Shore A 25 (flexible) |
| Operating Time at 25°C | 1-2 hours |
| Curing Time at 25°C | 8-12 hours |
| Dielectric Strength | 18-25 kV/mm |
| Volume Resistivity | ≥1×10¹⁴ Ω·cm |
| Dielectric Constant (1MHz) | 2.5-3.0 |
| Thermal Conductivity | 0.1-0.20 W/m·K |
| Temperature Range | -57°C to 250°C |
Customize hardness, viscosity, color, and adhesion for your outdoor electronics project. 40,000 m² facility with dedicated R&D. Sample formulations in 3-5 working days.
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