3.0 W/m·K High Thermal Conductivity Silicone Potting Compound Manufacturer | RTV-2 Addition-Cure Encapsulation Gel (HN-8830A/B)

3.0 W/m·K High Thermal Conductivity Silicone Potting Compound Manufacturer | RTV-2 Addition-Cure Encapsulation Gel (HN-8830A/B)

Product Overview:

Shenzhen Hanast New Materials Co., Ltd. is a professional China-based chemical manufacturer specializing in HN-8830A/B, a premium two-component, addition-cure (platinum-catalyzed) 3.0 W/m·K high thermal conductivity silicone potting compound. Designed for high-power electronics requiring rapid heat dissipation and electrical isolation, HN-8830 features a 1:1 mix ratio by weight, low mixed viscosity (11,000 mPa·s), and self-leveling fluidity for deep-section potting.

HN-8830 maintains long-term flexible elastomeric protection across a broad operating temperature range from -40°C to +200°C, achieving UL 94 V-0 flame retardancy and superior dielectric insulation (volume resistivity ≥ 1.0 × 10¹⁴ Ω·cm). It offers versatile curing options—flexible room-temperature curing (4–8 hours at 25°C) or rapid heat-accelerated curing (30 minutes at 80°C). Engineered as a factory-direct alternative to imported high-thermal encapsulation adhesives, HN-8830 is ideal for EV DC-DC converters, switching power supplies, LED drivers, and automotive ignition modules. Supplied in standard 50 kg sets (25 kg Component A + 25 kg Component B plastic barrels), we provide complete SDS/MSDS for non-dangerous goods sea freight and full origin certificate support (Form E / RCEP).

2. Technical Specifications & Performance Matrix

Technical Data Sheet (HANAST HN-8830A/B TDS)

2.1 Liquid Uncured Properties (at 25°C)

2.2 Physical & Electrical Cured Properties

3. Direct Factory Alternatives & Performance Cross-Reference

4. Key Application Scenarios

• New Energy Vehicles (NEV) & EV Power: Potting for DC-DC converters, OBCs (On-Board Chargers), automotive HID lamp modules, and ignition system power units.

• Power Supplies & Inverters: Encapsulation of high-power switching power supplies, industrial driver power supplies, and outdoor energy storage units.

• Home Appliance & Industrial Controllers: Thermal management for high-power appliance control boards operating under continuous high temperature.

• Power Modules & Circuit Board Encapsulation: Protection of sensitive power modules and densely packed PCB components needing shock resistance and heat release.

5. Frequently Asked Questions (FAQ) Module

Q1: What makes HN-8830 suitable for high-power EV power modules and DC-DC converters?

A: HN-8830 delivers an elevated thermal conductivity of 3.0 ± 0.1 W/m·K, which rapidly transfers heat away from high-power electronic components to heat sinks. Combined with its 1:1 mix ratio, low viscosity (11,000 mPa·s), UL 94 V-0 flame retardancy, and reliable continuous thermal stability from -40°C to +200°C, it guarantees electrical insulation and structural integrity under severe thermal shock and vibration.

Q2: What is the recommended curing schedule for HN-8830 silicone potting compound?

A: HN-8830 offers flexible curing options:

1. Room Temperature Cure: Cures within 4–8 hours at 25°C.

2. Heat-Accelerated Cure: Fully cures in just 30 minutes at 80°C.

3. Two-Stage Cure (Recommended): Allow the compound to stand at room temperature until tack-free, followed by 30 minutes at 80°C for optimal flow, stress relief, and ultimate physical performance.

Q3: How do I avoid cure inhibition ("poisoning") when using this addition-cure silicone?

A: Because HN-8830 utilizes a platinum catalyst, contact with certain chemical contaminants can inhibit curing (leaving a tacky or uncured layer). Avoid contact with:

• Organotin or tin-containing silicones (condensation-cure silicones).

• Sulfur, polysulfides, or sulfur-vulcanized rubber.

• Amines, polyurethane rubber, or ammonia derivatives.

• Phosphorus compounds, organic acids, solder flux residues, and epoxy resins. Ensure all mixing tools, dispensers, and component substrates are thoroughly cleaned prior to potting.

Q4: How is HN-8830 packaged, and what are its export shipping classifications?

A: HN-8830 is supplied in a 50 kg/set kit containing 25 kg Component A (plastic barrel) and 25 kg Component B (plastic barrel). It has a shelf life of 6 months when stored between 5–25°C in tightly sealed original containers. For export logistics, HN-8830 is classified as non-dangerous goods (general chemicals) for ocean container shipping. Shenzhen Hanast provides full export documentation including GHS MSDS/SDS, Certificate of Analysis (COA), and origin certificates (Form E / RCEP).