V-0 Flame-Rated PU Potting for Automotive & Aerospace Electronics 6807 BK
BZ-6807(BK) is a UL94 V-0 polyurethane potting compound engineered specifically for automotive electronics, vehicle systems, and low-altitude aircraft platforms. It delivers certified fire safety alongside proven thermal durability, with a Relative Temperature Index (RTI) of 130°C and official UL Yellow Card recognition (QMFZ2.E352175).
Key Product Features
1. V-0 at 1.5mm Thickness: Verified through vertical burn testing per UL Yellow Card QMFZ2.E352175 – an essential safeguard for ECUs, battery management systems, and UAV flight controllers where fire mitigation is non-negotiable.
2. 130°C Continuous Operation: Maintains dielectric and structural integrity under prolonged heat exposure, validated to automotive-grade thermal standards via QMFZ2.E352175.
3. Full-Spectrum Environmental Shielding: Integrates thermal cycling tolerance, UV stability, IP68-rated waterproofing, shock absorption, and high-voltage insulation – a complete armor for electronics in harsh operating environments.
4. Supply-Chain Ready Compliance: Fully aligns with RoHS, REACH, and IATF 16949 requirements, enabling friction-free adoption across global automotive and aerospace production networks.
Technical Parameters
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Parameters |
Hardener BZ-6807(BK) A |
Resin BZ-6807(BK) B |
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Before curing |
Appearance |
Brown liquid |
Black liquid |
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Viscosity(mPa·s.25℃) |
60-140 |
2800-5000 |
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Initial mixed viscosity(mPa·s.25℃) |
1100±300 |
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Density(g/cm³.25℃) |
1.21±0.05 |
1.52±0.05 |
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Mixing&Curing
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Mix ratio(by weight) |
A:B=1:5 |
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Pot life 130±30g(min.25℃) |
30±10 |
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Curing condition |
Room temperature curing |
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Surface drying time 30g(H.25℃) |
3-4.5 H |
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Curing time 30g(H.25℃) |
4-8 H |
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Curing time(Heated) |
60℃ heated 1H |
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After curing
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Color |
Black |
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Hardness (Shore D) |
50±10 |
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Temperature resistance(℃) |
-40~130℃ |
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Flame retardancy UL94 (Vertical burning)
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V0 |
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Thermal conductivity(W/m.k) |
≥0.50 |
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Water absorption(24H) |
≤0.1% |
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Surface resistivity(Ω/sq) |
≥1.0×1013 |
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Volume resistivity(Ω.cm) |
≥1.0×1013 |
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Tensile strength(MPa) |
≥3 |
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Dielectric constant(at 50Hz) |
≥6 |
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Breakdown voltage(kV/mm) |
≥20 |
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Average Linear Coefficient of Thermal Expansion |
149×10-6K-1 |
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Comparative Tracking Index (CTI) |
Ⅰ/600V |
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Product Applications
- Automotive Electronics: Delivers excellent electrical performance, vibration resistance, V-0 flame retardancy, thermal stability, and long-term reliability.
- Low-Altitude Aircraft: Low-density formulation supports lightweight design, with flexible material properties and IP68 waterproofing.
- Sensors: Combines low density, V-0 flame retardancy, low dielectric constant, and low-temperature resistance.
- Industrial Controllers & PCBs: Features RTI 130°C-rated high-temperature resistance, high thermal conductivity, heat dissipation capability, and V-0 fire protection.
- Other Electronic Products: Offers V-0 flame retardancy, UL Yellow Card certification, and RTI 130°C compliance, with electrical and mechanical properties meeting most high-performance material requirements.
Directions for Use
- Pre-potting Preparation: Calibrate scales, prepare potting tools, cleaning tools, check machine settings, check vacuum pump force, etc.
- Product Pre-treatment: Place product on a level surface or fixture. Remove dust, clean, degrease, and dry if necessary.
- 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.
- Mixing & Stirring: Manual operation requires thorough stirring or using electric stirrers to ensure homogeneous mixing. Machine potting requires sufficient stirring speed, adjust as needed.
- Uniform Potting: Manual operation should be done in small, multiple batches to ensure uniformity. Machine potting should follow the programmed path for quantitative dispensing.
- Inspection or Secondary Potting: After potting, visually inspect as needed. Perform touch-up, bubble removal, or secondary potting if required.
- 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.
- Final Product Confirmation: Perform visual inspection and performance testing as required by the customer.
Packing
- Hardener: Typically 5KG/10KG/25KG/200KG metal or plastic drums.
- Resin: Typically 25KG/200KG metal or plastic drums.
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