China silicone potting compound factory Two-Component Thermally 1:1 Conductive Silicone Potting Compound 1.0 W/mK

HN-8810A/B is a two-component addition-cure (platinum-catalysed) thermally conductive silicone potting compound with a low viscosity and a convenient 1:1 mix ratio by weight. It offers excellent thermal conductivity of 1.0 W/m·K, good fluidity and self-levelling for easy pouring, and cures at room temperature or with heat acceleration. The cured elastomer keeps its rubber elasticity across a wide service range of −40 °C to 150 °C, with strong high-temperature resistance, anti-ageing performance, excellent electrical insulation and waterproof / moisture-proof protection.

Key Features of Silicone Potting Compound

• Excellent thermal conductivity: 1.0 ± 0.1 W/m·K
• Low viscosity and good fluidity for easy pouring and self-levelling
• 1:1 mix ratio (A:B by weight); room-temperature or heat curing
• Wide operating temperature range: −40 °C to 150 °C
• Good high-temperature resistance and anti-ageing properties
• Excellent electrical insulation; volume resistivity ≥ 5.0 × 10¹⁴ Ω·cm
• Flame retardant: UL94 V-0
• Waterproof and moisture-proof; protects electronic assemblies from humidity

Typical Applications of Silicone Potting Compound

• Potting protection of general electronic components, power modules and circuit boards
• Automotive HID lamp module power supplies
• Automotive ignition system module power supplies
• Network transformers and various electronic appliances
• General electronic encapsulation requiring thermal dissipation, insulation and waterproof protection

Technical Data of Silicone Potting Compound

Mixing & Application Instructions

1. Pre-mix: Stir Components A and B thoroughly and separately before use so that settled filler is uniformly dispersed.
2. Weighing: Accurately weigh A and B in a 1:1 ratio by weight using a precision scale.
3. Mixing: Mix A and B thoroughly by hand or machine until the colour is uniform.
4. Degassing: Place the mixed compound in a vacuum cabinet to remove entrapped air.
5. Potting: Pour the degassed compound into the clean, dry device to complete potting.
6. Curing: Cure at room temperature or heat cure at 80 °C for 10–20 minutes.

Packaging

• Component A: 25 kg iron / plastic drum
• Component B: 25 kg iron / plastic drum
• Kit (A+B): 50 kg / set (25 kg + 25 kg)

Storage & Shelf Life

• Store in original, tightly sealed containers in a cool, dry, well-ventilated area below 25 °C.
• Protect from direct sunlight, moisture, heat and extreme temperatures.
• Shelf life: 6 months from date of manufacture when stored unopened and properly sealed.

About Our Company

The company was established in 2006 and is headquartered in Shenzhen, specializing in the research and development of new adhesive materials. It is a national-level specialized and innovative small giant enterprise. The company's factory in Xinhui, Jiangmen, Guangdong covers 60 acres with a total investment of 600 million. It has over 40 professional R&D personnel with more than 10 years of rich practical experience, led by researchers from the Chinese Academy of Sciences, all of whom are from domestic and international chemical engineering universities. The company maintains partnerships with several Fortune 500 companies such as Apple, BYD, and China Aerospace.