Waterproof Thermal Potting Compound 2.0W/mK UL94 V-0 Anti-Aging Silicone Encapsulant for Outdoor Marine Electronics
HN-8820 is a waterproof and anti-aging two-part addition-cure silicone potting compound purpose-engineered for outdoor electronic enclosures, marine electronics sealing, automotive lighting encapsulation, and energy meter protection. This UV-resistant encapsulant provides complete environmental sealing with 2.0W/mK thermal conductivity and UL 94 V-0 flame retardancy. Delivers decades of reliable protection against moisture, salt spray, UV exposure, and temperature extremes from -40°C to 150°C.
- Fully Waterproof After Curing: Complete moisture barrier prevents corrosion, short circuits, and dendritic growth on PCB assemblies
- Anti-UV & Anti-Yellowing: Specialized formulation resists sunlight degradation and maintains optical clarity for transparent housing applications
- Long-Term Anti-Aging: Does not embrittle, crack, or lose elasticity after years of outdoor and marine exposure
- Salt Spray Resistant: Withstands marine and coastal environments without degradation — ASTM B117 500+ hours tested
- Environmental Sealing: Perfect for connector potting, cable junction encapsulation, and enclosure gasket replacement
- Thermal Management: 2.0W/mK conductivity effectively dissipates heat from sealed outdoor power electronics
- UL 94 V-0 Certified: Self-extinguishing flame rating for outdoor electrical safety compliance
- Water Immersion Proven: No degradation after 1000+ hours continuous submersion
Complete waterproof sealing with anti-UV stable formulation. Protects against rain, humidity, dust, UV, and temperature swings for telecom, power distribution, and industrial control cabinets.
Salt-resistant encapsulation with complete moisture barrier. Ideal for navigation systems, sonar modules, marine communication equipment, and bilge pump controllers exposed to constant salt spray.
Flexible waterproof potting with thermal cycling endurance. Protects LED headlights, taillights, and fog lamps from road spray, vibration, and under-hood heat.
IP-grade environmental sealing for utility meter electronics. Tamper-resistant potting that withstands decades of outdoor meter operation.
Excellent adhesion to connector housings and cable jackets. Prevents moisture ingress at cable entry points in outdoor installations.
2.0W/mK heat dissipation with anti-yellowing clarity. Designed for 24/7 outdoor operation with 10+ year service life under continuous UV exposure.
| Environmental Factor | HN-8820 Performance |
|---|---|
| Water Immersion | No degradation after 1000+ hours continuous submersion |
| UV Exposure (ASTM G154) | No yellowing or mechanical property loss after 2000 hours |
| Salt Spray (ASTM B117) | No corrosion undercutting after 500 hours |
| Thermal Cycling (-40°C to 150°C) | No cracking or delamination after 1000 cycles |
| Humidity Aging (85°C/85% RH) | Stable dielectric strength after 1000 hours |
As a direct waterproof potting compound manufacturer in Shenzhen, Guangdong, we offer custom UV stabilization, low-temperature flexibility for Arctic deployments, transparent optical clarity versions, marine-grade certification with documented test reports, and free 1KG samples with complete TDS and MSDS documentation. MOQ from 1KG for prototyping, volume pricing for production orders.
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