Fast-Cure Polyurethane Potting Compound for High-Efficiency Power Electronics Production

BZ-6806-6-3R is a high-performance two-component polyurethane potting compound optimized for fast, reliable insulation, sealing, and waterproof protection of electronic/electrical power supplies, industrial controllers, power tool control boards, and new energy vehicle converters. Boasting UL94 V-0 flame retardancy, ultra-rapid curing capabilities, and enhanced thermal conductivity, it streamlines production workflows while meeting stringent safety standards. Compliant with RoHS regulations, this formula delivers stable performance across -40℃ to 120℃, with low water absorption (≤0.5%) ensuring long-term durability in high-power electronic applications.

Key Product Features

1. Top-tier Fire Safety: UL94 V-0 flame retardant certified, effectively inhibiting flame spread to protect high-risk electronic assemblies
2. Ultra-rapid Curing Efficiency: Fully cures in 2-6 hours at room temperature, or ≤20 minutes with 60°C heating, ideal for high-volume production
3. Convenient Mixing Ratio: 1:5 weight ratio simplifies operation, reduces waste, and is compatible with automated dispensing systems
4. Efficient Thermal Management: Thermal conductivity ≥0.50 W/m·k, rapidly dissipates component heat to extend service life
5. Reliable Electrical Insulation: Breakdown voltage ≥15 kV/mm, surface resistivity ≥1.0×10¹¹ Ω/sq, providing excellent isolation performance
6. Balanced Mechanical Properties: Shore A hardness 73±10, combining flexibility and vibration resistance to adapt to thermal expansion/contraction stresses
7. Global Compliance: Meets RoHS environmental standards and UL94 V-0 fire safety certification, satisfying international market access requirements

Technical Parameters

Product Applications

1. High-Volume Power Supplies: Encapsulates consumer electronics chargers, industrial power inverters, and server power units, supporting rapid production lines.
2. New Energy Vehicle Components: Insulates battery management systems (BMS), on-board chargers, and DC-DC converters, withstanding extreme temperature fluctuations and mechanical vibration.
3. Industrial Controllers: Seals PLCs, motor drives, and power tool control boards, protecting against dust, moisture, and harsh manufacturing environments.
4. Renewable Energy Systems: Protects solar inverters and wind turbine controllers, ensuring long-term reliability in outdoor installations with fire safety requirements.
5. Telecommunications Infrastructure: Encapsulates base station power modules and signal processing units, enhancing durability in enclosed telecom cabinets.

Directions for Use

1. Pre-potting Preparation: Calibrate scales, prepare potting tools, cleaning tools, check machine settings, check vacuum pump force, etc.
2. Product Pre-treatment: Place product on a level surface or fixture. Remove dust, clean, degrease, and dry if necessary.
3. Accurate Proportioning: Manual operation requires precise mixing according to the specified ratio and recording. Machine potting requires calibrated ratios and first-article confirmation is recommended.
4. Mixing & Stirring: Manual operation requires thorough stirring or using electric stirrers to ensure homogeneous mixing. Machine potting requires sufficient stirring speed, adjust as needed.
5. Uniform Potting: Manual operation should be done in small, multiple batches to ensure uniformity. Machine potting should follow the programmed path for quantitative dispensing.
6. Inspection or Secondary Potting: After potting, visually inspect as needed. Perform touch-up, bubble removal, or secondary potting if required.
7. Curing: Allow the potted and inspected products to cure at room temperature or with heat assistance (recommended 60°C if needed), according to product and process requirements.
8. Final Product Confirmation: Perform visual inspection and performance testing as required by the customer.

Packing & Shipping & Storage

1. Hardener: Typically 5KG/10KG/25KG/200KG metal or plastic drums.
2. Resin: Typically 25KG/200KG metal or plastic drums.
3. Store and transport as a general chemical product.
4. Store sealed, protected from light at room temperature. Shelf life varies from 6 to 12 months depending on packaging; please refer to the expiry date on the shipping package.
5. When temperature drops to 15°C or lower, the hardener or resin should be stored in a warm place or heated before use for potting. Specific heating recommendations depend on the temperature drop; please communicate and consult with us.