UL94 V0 Flame-Retardant Polyurethane Potting Compound Automotive & Aerospace
Product Description
BZ-6807(BK) is a high-performance polyurethane potting compound with UL94 V-0 rating (1.5mm), engineered for automotive electronics, components, and low-altitude aircraft systems. It meets stringent industry demands for fire safety and thermal durability, featuring an RTI of 130°C for sustained heat resistance, with UL Yellow Card Certification No. QMFZ2.E352175.
Key Product Features
- UL94 V-0 at 1.5mm: Passes rigorous vertical flame tests; trusted for automotive ECUs, battery management systems (BMS), and UAV electronic components where fire protection is critical.
- RTI 130°C Thermal Endurance: Preserves mechanical and dielectric integrity under prolonged heat exposure, as certified per UL Yellow Card QMFZ2.E352175.
- All-Environment Protection: Combines temperature tolerance, UV resistance, IP68 waterproofing, shock/vibration damping, and high dielectric strength for reliable performance in extreme conditions.
- Global Regulatory Ready: Fully compliant with RoHS, REACH, and IATF 16949, ensuring smooth integration into international automotive and aerospace supply chains.
Technical Parameters
|
Parameters
|
Hardener
BZ-6807(BK) A
|
Resin
BZ-6807(BK) B
|
|
Before curing
|
Appearance
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Brown liquid
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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)
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A:B=1:5
|
|
Pot life 130±30g(min.25℃)
|
30±10
|
|
Curing condition
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Room temperature curing
|
|
Surface drying time 30g(H.25℃)
|
3-4.5 H
|
|
Curing time 30g(H.25℃)
|
4-8 H
|
|
Curing time(Heated)
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60℃ heated 1H
|
|
After curing
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Color
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Black
|
|
Hardness (Shore D)
|
50±10
|
|
Temperature resistance(℃)
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-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 – High electrical performance, vibration resistance, V0 flame retardancy, thermal stability, and reliability.
- Low-Altitude Aircraft – Low density enables lightweight design; combines flexibility with IP68 waterproofing.
- Sensors – Low density, V0 rating, low dielectric constant, and low-temperature tolerance.
- Industrial Controllers & Boards – Excellent heat resistance (RTI 130 compliant), high thermal conductivity and dissipation, plus V0 fire protection.
- Other Electronics – V0 flame retardancy, UL Yellow Card, RTI 130 compliance, and robust electrical/mechanical properties to meet high-performance material demands across most applications.
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.
