Weather Resistant Silicone Potting Compound Wide Temperature Range Low Stress For Energy Storage Station Electronic Encapsulation
Product Overview for Silicone Potting Compound:
HN-8808 Series potting compounds satisfy strict reliability standards for automotive electronics. Featuring superior elastomeric characteristics, the material efficiently cushions mechanical vibration and impact stress. With a broad operating temperature window of -50°C to 200°C, it sustains consistent performance in severe environments such as engine bays. Formulated to shield automotive electronic modules against moisture, chemical corrosion and thermal cycling as well as vibration, it assists assemblies in passing full automotive-grade reliability validation.
Key Performance Parameters for Silicone Potting Compound:
| Appearance (Mixed) |
Transparent/Black/White Elastomer (select as needed) |
| Mix Ratio (A:B) |
10 : 1 (by weight) |
| Pot Life (25°C) |
40-60 minutes |
| Cure Time (25°C) |
4-6 hours (tack-free), 24 hours (full cure) |
| Hardness (Shore A) |
30-40 (GB/T531-1999) |
| Volume Resistivity |
≥5.0×10¹⁴ Ω·cm (GB/T 31838.2-2019) |
| Thermal Conductivity |
0.3-0.5 W/M·K (depending on color, GB/T 38712-2020) |
| Dielectric Strength |
≥14 kV/mm |
Product Highlightsfor Silicone Potting Compound:
Outstanding Environmental Resistance: Tolerates thermal shock and high temperature & humidity conditions, maintaining stable performance under extreme working environments.
Superior Chemical Resistance: Provides reliable protection against automotive oils, brake fluids, coolants and other media.
Efficient Stress Relief: Low hardness and high elasticity absorb interfacial stress between PCBs and enclosures to safeguard fragile electronic components.
Long-Term Service Durability: Excellent anti-ageing performance delivers consistent protection over the full service life of vehicles.
Eco-Friendly Compliance: Conforms to RoHS and relevant directives, satisfying environmental specifications of the automotive industry.
Application Areas for Silicone Potting Compound:
Engine Control Units (ECU)
Battery Management Systems (BMS), On-Board Chargers (OBC)
Automotive sensors (pressure sensors, position sensors, etc.)
Lighting controllers and wiper controllers
Infotainment systems and instrument dashboards
Detailed Operating Guide for Silicone Potting Compound:
1. Process Validation
Verify material compatibility with substrates such as epoxy PCBs and PU enameled wires via trial testing before mass production.
2. Precise Meter & Mix
Use two-part dispensing equipment with static mixers to ensure accurate ratio and full mixing, a key factor for automotive long-term reliability.
3. Mandatory Vacuum Degassing
Vacuum degas the mixture to avoid partial discharge and higher thermal resistance.
4. Controlled Working Conditions
Perform potting in a clean area with stable temperature and humidity to avoid contamination.
5. Curing Requirements
Wait at least 24 hours after potting at ambient temperature prior to electrical testing. Complete final assembly and environmental tests after 7 days of full curing.
Packaging & Storage for Silicone Potting Compound:
Standard Packaging: 22kg set (20kg Part A + 2kg Part B); 11kg set (10kg Part A + 1kg Part B). 200kg steel drums are offered for high-volume production.
Storage Conditions: Keep in a cool, dry area and avoid direct sunlight.
Shelf Life: 6 months from the manufacturing date for intact, unopened original packaging.
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