Flame Retardant Polyurethane Potting Compound For Automotive Black White

BZ-6806-2-1 is a two-component polyurethane potting system designed for filling, insulating, and waterproofing power supplies, controllers, and converters in new energy vehicles. It offers tunable curing profiles and multiple color choices, balancing process flexibility with fast-cycle production. Fully RoHS/REACH-compliant, it operates reliably from -40℃ to 120℃, with thermal conductivity ≥0.40 W/m·k and water absorption ≤0.5%, ensuring durable performance in high-power electronic environments.

Key Product Features

1. UL94 V-0 Rated: Certified flame-retardant, minimizing fire risks in sealed or high-risk power assemblies.
2. Adjustable Curing: Pot life 20–60 min; cure time 6–9 h at 25℃ (process/temperature adjustable), or ≤60 min at 60℃ for high-throughput production.
3. Superior Insulation: Breakdown voltage ≥15 kV/mm; surface resistivity ≥1.0×10¹¹ Ω/sq for secure component isolation.
4. Mechanical Strength: Shore A 70±10 hardness; tensile strength ≥2 MPa, absorbing shock and thermal expansion.
5. Color Versatility: Available in black, white, or beige to suit functional and visual design needs.
6. Global Standards: Meets RoHS, REACH, and UL94 V-0 requirements, aligned with international automotive and electronics safety norms.

Technical Parameters

Product Applications

1. High-Safety Power Supplies: Encapsulates medical, server, and industrial inverter power units, meeting fire safety regulations.
2. New Energy Vehicle Components: Insulates battery management systems, onboard chargers, and DC-DC converters against vibration and thermal swings.
3. Industrial Controllers: Seals PLCs, motor drives, and power tool boards from dust and moisture in factory settings.
4. Renewable Energy Systems: Protects solar inverters and wind turbine controllers for outdoor durability and fire safety.
5. Telecom Infrastructure: Encapsulates base station power modules and signal processors, boosting reliability in enclosed 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.