High-Resistance Polyurethane Potting Compound For Outdoor Electronics
Product Description
BZ-6805-1R is a versatile two-component polyurethane potting compound engineered for waterproofing, sealing, and insulation of electronic circuit boards, outdoor LED lighting fixtures, automotive components, and sensors. With moderate fluidity and balanced penetration, it fully encapsulates sensitive components, providing robust defense against moisture, dust, and mechanical stress. Compliant with RoHS/REACH regulations, this formula delivers reliable performance across -40℃ to 120℃, featuring ultra-high electrical resistivity (≥1.0×10¹⁴ Ω/sq) and low water absorption (≤0.5%) for long-term stability in harsh outdoor environments.
Key Product Features
- Multi-Color Customization: Available in black, beige, or white to match aesthetic and functional requirements of diverse electronic assemblies.
- Ultra-High Electrical Insulation: Surface/volume resistivity ≥1.0×10¹⁴ Ω/sq/Ω·cm and breakdown voltage ≥15 kV/mm ensure superior component isolation.
- Balanced Mechanical Strength: Shore A 82±10 hardness with ≥5 MPa tensile strength and ≥40% elongation, resisting vibration and impact in automotive and outdoor applications.
- Efficient Processing: 3:10 mix ratio, 33±7 minute pot life, and fast curing (2-3 hour surface dry, 3-5 hour full cure at 25℃; 1±0.5 hour at 60℃).
- Wide Temperature Stability: Operates reliably from -40℃ to 120℃, withstanding extreme cold in outdoor lighting and continuous heat in automotive systems.
- Global Compliance: RoHS/REACH compliant, meeting international manufacturing standards for electronic and automotive industries.
Technical Parameters
|
Parameters
|
Hardener
BZ-6805-1R A
|
Resin
BZ-6805-1R B
|
|
Before curing
|
Appearance
|
Brown liquid
|
Black/Beige/White liquid
|
|
Viscosity(mPa·s.25℃)
|
100-300
|
2250±750
|
|
Initial mixed viscosity(mPa·s.25℃)
|
1050±350
|
|
Density(g/cm³.25℃)
|
1.21±0.05
|
1.20±0.05
|
|
Mixing
&
Curing
|
Mix ratio(by weight)
|
A:B=30:100
|
|
Pot life 130±30g(min.25℃)
|
33±7
|
|
Curing condition
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Room temperature curing
|
|
Surface drying time 30g(H.25℃)
|
2-3
|
|
Curing time 30g(H.25℃)
|
3-5
|
|
Curing time(Heated)
|
60℃ heated 1±0.5H
|
|
After curing
|
Color
|
Black/Beige/White
|
|
Hardness (Shore A)
|
82±10
|
|
Temperature resistance(℃)
|
-40~120℃
|
|
Flame retardancy UL94
|
HB-V2
|
|
Thermal conductivity(W/m.k)
|
≥0.40
|
|
Water absorption(24H)
|
≤0.5%
|
|
Surface resistivity(Ω/sq)
|
≥1.0×1014
|
|
Volume resistivity(Ω.cm)
|
≥1.0×1014
|
|
Tensile strength(MPa)
|
≥5
|
|
Elongation at break(%)
|
≥40%
|
|
Dielectric constant(at 50Hz)
|
≥4
|
|
Breakdown voltage(kV/mm)
|
≥15
|
Product Applications
- Outdoor LED Lighting Fixtures: Seals and insulates street lamps, floodlights, and garden lights, providing long-term protection against rain, dust, and UV exposure.
- Automotive Electronic Components: Protects sensors, control modules, and wiring harnesses from vibration, temperature fluctuations, and road debris.
- Industrial Circuit Boards: Encapsulates PLCs, motor controllers, and power supplies, enhancing reliability in manufacturing and renewable energy systems.
- Smart City Sensors: Provides environmental sealing for traffic sensors, weather stations, and air quality monitors in urban and remote locations.
- Marine Electronics: Insulates navigation systems, communication equipment, and battery management systems in saltwater environments.
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.
