UL94 V0 Flame-Retardant Polyurethane Potting Compound Automotive
& Aerospace
Product Description BZ-6807(BK) is a high-performance, UL94 V0-rated flame-retardant
polyurethane potting compound specifically engineered for automotive electronics, automotive components, and low-altitude aircraft systems. Designed to meet the strictest industry standards, this advanced
polyurethane formula delivers exceptional fire safety and thermal
stability, with a Relative Temperature Index (RTI) of 130℃ for long-term heat resistance, and holds official UL Yellow
Card Certification No. QMFZ2.E352175. Key Product Features - UL94 V0 Flame Retardancy (1.5mm thickness): Passes rigorous vertical burn tests, validated by UL Yellow Card
Certification No. QMFZ2.E352175, making it ideal for automotive
ECUs, battery management systems (BMS), and UAV electronic
components where fire safety is non-negotiable.
- RTI 130℃ Thermal Stability: Maintains mechanical and electrical integrity under continuous
high-temperature conditions, complying with automotive industry
heat resistance requirements as specified in UL Yellow Card
QMFZ2.E352175.
- Multi-Environmental Protection: Provides reliable temperature resistance, UV weatherability, IP68
waterproof sealing, shock/vibration resistance, and high dielectric
strength to protect sensitive electronics in harsh operating
environments.
- Global Compliance: Meets RoHS, REACH, and IATF 16949 standards, ensuring seamless
integration into international automotive and aerospace supply
chains.
Technical Parameters Parameters | Hardener BZ-6807(BK) A | Resin BZ-6807(BK) B | Before curing | Appearance | Brown liquid | Black liquid | Viscosity(mPa·s.25℃) | 60-140 | 2800-5000 | Initial mixed viscosity(mPa·s.25℃) | 1100±300 | Density(g/cm³.25℃) | 1.21±0.05 | 1.52±0.05 | Mixing&Curing | Mix ratio(by weight) | A:B=1:5 | Pot life 130±30g(min.25℃) | 30±10 | Curing condition | Room temperature curing | Surface drying time 30g(H.25℃) | 3-4.5 H | Curing time 30g(H.25℃) | 4-8 H | Curing time(Heated) | 60℃ heated 1H | After curing | Color | Black | Hardness (Shore D) | 50±10 | Temperature resistance(℃) | -40~130℃ | Flame retardancy UL94 (Vertical burning) | V0 | Thermal conductivity(W/m.k) | ≥0.50 | Water absorption(24H) | ≤0.1% | Surface resistivity(Ω/sq) | ≥1.0×1013 | Volume resistivity(Ω.cm) | ≥1.0×1013 | Tensile strength(MPa) | ≥3 | Dielectric constant(at 50Hz) | ≥6 | Breakdown voltage(kV/mm) | ≥20 | Average Linear Coefficient of Thermal Expansion | 149×10-6K-1 | Comparative Tracking Index (CTI) | Ⅰ/600V |
Product Applications - Automotive Electronics: Excellent Electrical Performance, Vibration
Resistance, Flame Retardant V0 Class, Heat Stability and
Reliability
- Low-altitude aircraft: Low density can be combined with lightweight
design, flexible materials, and waterproof IP68
- Sensor: low density, flame-retardant V0, low dielectric constant,
and low-temperature resistant;
- Industrial controllers and control boards: Excellent
high-temperature resistance, compliant with RTI 130 temperature
rating standards, featuring high thermal conductivity and heat
dissipation capabilities, with V0-class fire resistance.
- Other electronic products: Flame-retardant V0, UL Yellow Card,
compliant with RTI 130 temperature resistance standard. Their
outstanding electrical and mechanical properties meet most
electronic products' requirements for high-performance materials.
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 & Shipping & Storage- Hardener: Typically 5KG/10KG/25KG/200KG metal or plastic drums.
- Resin: Typically 25KG/200KG metal or plastic drums.
- Store and transport as a general chemical product.
- 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.
- 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.
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