Flame Retardant Polyurethane Potting Compound For Automotive Black White

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. UL94 V-0 Flame Retardancy: Achieves strict fire safety certification, inhibiting flame spread for enclosed or high-risk power electronics assemblies.
2. Flexible Curing Control: Pot life 20-60 minutes and curing time 6-9 hours at 25℃ (adjustable via process/temperature); heat curing (≤60 minutes at 60℃) supports 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. Mechanical Resilience: Shore A 70±10 hardness with ≥2 MPa tensile strength, absorbing vibration and thermal expansion in power electronics.
5. Multi-Color Options: Available in black, white, or beige to match aesthetic and functional requirements of diverse electronic assemblies.
6. Global Compliance: RoHS/REACH compliant with UL94 V-0 certification, meeting international safety standards for power electronics and automotive industries.

Technical Parameters

Product Applications

1. High-Safety Power Supplies: Encapsulates medical power supplies, server power units, and industrial inverters, meeting strict fire safety regulations.
2. New Energy Vehicle Components: Insulates battery management systems (BMS), on-board chargers, and DC-DC converters, withstanding vibration and temperature fluctuations.
3. Industrial Controllers: Seals PLCs, motor drives, and power tool control boards, protecting against dust and moisture in manufacturing environments.
4. Renewable Energy Systems: Protects solar inverters and wind turbine controllers, ensuring long-term performance in outdoor installations with fire safety requirements.
5. Telecommunications Infrastructure: Encapsulates base station power modules and signal processors, 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.