Ultra-Fast Heat-Curing Polyurethane Potting Compound For Power Electronics

BZ-6806-2-1 is a versatile two-component polyurethane potting compound engineered for filling, insulation, and waterproof protection of power supplies, controllers, and new energy vehicle converters. With adjustable curing times and multi-color options, it balances workability and rapid production efficiency. Compliant with RoHS/REACH regulations, this formula delivers reliable performance across -40℃ to 120℃, featuring excellent thermal conductivity (≥0.40 W/m·k) and low water absorption (≤0.5%) for long-term stability in high-power electronic applications.

Key Product Features

1. Multi-Color Customization: Available in black, white, grey, or beige to match aesthetic and functional requirements of diverse electronic assemblies.
2. Flexible Curing Control: Pot life 20-60 minutes and curing time 4-8 hours at 25℃ (adjustable via process/temperature); ultra-fast heat curing (≤30 minutes at 60℃) for high-volume production.
3. High Electrical Insulation: Breakdown voltage ≥15 kV/mm and surface resistivity ≥1.0×10¹¹ Ω/sq ensure reliable component isolation.
4. Balanced Mechanical Resilience: Shore A 78±8 hardness with ≥2 MPa tensile strength, absorbing vibration and thermal expansion in power electronics.
5. Efficient Processing: 3:10 mix ratio with moderate fluidity, suitable for automated dispensing systems and manual operations.
6. Global Compliance: RoHS/REACH compliant, meeting international manufacturing standards for power electronics and automotive industries.

Technical Parameters

Product Applications

1. Power Supplies & Converters: Encapsulates AC/DC adapters, server power supplies, and new energy vehicle converters, enhancing thermal management and reliability.
2. Industrial Controllers: Seals PLCs, motor drives, and power tool control boards, protecting against dust and moisture in manufacturing environments.
3. New Energy Vehicle Components: Insulates battery management systems (BMS) and on-board chargers, withstanding vibration and temperature fluctuations.
4. Renewable Energy Systems: Protects solar inverters and wind turbine controllers, ensuring long-term performance in outdoor installations.
5. Telecommunications Equipment: Encapsulates base station power modules and signal processors, enhancing durability in telecom infrastructure.

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.