UL94-V0 White Polyurethane Potting Compounds with Excellent Electrical Properties
Product Description
This is a high-performance white potting adhesive — BZ-6807(WT) Polyurethane Potting Compound. As a premium V0-rated flame-retardant polyurethane solution, it is meticulously formulated for automotive electronics, automotive components, and low-altitude aircraft systems. Featuring exceptional flame resistance and robust thermal stability, this advanced compound complies with the RTI130℃ heat resistance specification. It fully meets the rigorous performance demands of automotive electronics applications, including superior temperature resistance, weatherability, waterproof protection, flame retardancy, impact resistance, as well as reliable dielectric strength and insulation capabilities.
Key Product Features
- This two-part white polyurethane formulation features a user-friendly dispensing process with excellent fluidity and permeability, ensuring smooth, hassle-free pouring that works seamlessly for both manual application and automated dispensing systems.
- Fully compliant with RoHS, REACH, and other international environmental regulations, this product is export-ready with minimal compliance barriers for global markets.
- Certified to UL94-V0 flame retardant standards and rated for RTI-130℃ thermal endurance, it carries UL Yellow Card Certification No. QMFZ2.E352175.
- Boasting strong adhesive properties, reliable resistance to extreme temperatures, and superior weatherability, this compound also delivers outstanding electrical insulation performance and robust mechanical strength.
- Its primary applications span automotive electronic components, general-purpose electronic/electrical control boards and controllers, electronic sensors, and a broad range of other industrial electronic devices.
Technical Parameters
|
Parameters
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Hardener
BZ-6807(WT) A
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Resin
BZ-6807(WT) B
|
|
Before curing
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Appearance
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Brown liquid
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White liquid
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|
Viscosity(mPa·s.25℃)
|
60-140
|
2850-5100
|
|
Initial mixed viscosity(mPa·s.25℃)
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1150±300
|
|
Density(g/cm³.25℃)
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1.21±0.05
|
1.53±0.05
|
|
Mixing&Curing
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Mix ratio(by weight)
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A:B=20:100
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|
Pot life 130±30g(min.25℃)
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25±5
|
|
Curing condition
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Room temperature curing
|
|
Surface drying time 30g(H.25℃)
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3-4.5 H
|
|
Curing time 30g(H.25℃)
|
4-8 H
|
|
Curing time(Heated)
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60℃ heated 1H
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|
After curing
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Color
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White
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|
Hardness (Shore A)
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85±10
|
|
Temperature resistance(℃)
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-40~130℃
|
|
Flame retardancy UL94
(Vertical burning)
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V0
|
|
Thermal conductivity(W/m.k)
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≥0.50
|
|
Water absorption(24H)
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≤0.1%
|
|
Surface resistivity(Ω/sq)
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≥1.0×1013
|
|
Volume resistivity(Ω.cm)
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≥1.0×1013
|
|
Tensile strength(MPa)
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≥3
|
|
Dielectric constant(at 50Hz)
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≥6
|
|
Breakdown voltage(kV/mm)
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≥20
|
|
Average Linear Coefficient of Thermal Expansion
|
149×10-6K-1
|
|
Comparative Tracking Index (CTI)
|
Ⅰ/600V
|
Product Applications
- Low-Altitude Aircraft: Features ultra-low density to support lightweight design objectives, with flexible, durable material properties and IP68-rated waterproof protection for aerial applications.
- Automotive Electronics: Delivers superior electrical performance, robust vibration resistance, UL94-V0 flame retardancy, exceptional thermal stability, and long-term operational reliability for critical vehicle systems.
- Industrial Controllers & Control Boards: Boasts excellent high-temperature resilience compliant with the RTI 130℃ thermal rating standard, enhanced with high thermal conductivity and efficient heat dissipation capabilities, paired with UL94-V0 fire resistance.
- Sensors: Combines low-density formulation with UL94-V0 flame retardancy, low dielectric constant, and reliable low-temperature tolerance to meet precision sensing requirements.
- General Electronic Products: Offers UL94-V0 flame retardancy, UL Yellow Card certification, and compliance with the RTI 130℃ thermal standard. Its outstanding electrical insulation and mechanical strength satisfy the high-performance material demands of most electronic 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.
