UL94 V-1 White PU Potting for Automotive & Outdoor Lighting
BZ-6118-8R is a two-component polyurethane encapsulant engineered for sealing, isolation, and protection of automotive lamps, outdoor LED fixtures, and modules. Offering rapid cure, UL94 V0/V1 flame rating, and high hardness, it streamlines production while ensuring mechanical ruggedness. RoHS and REACH compliant, it performs steadily from -40°C to 120°C, with thermal conductivity ≥0.5 W/m·k and surface resistivity ≥1.0×10¹³ Ω/sq for enduring reliability in demanding lighting environments.
Key Product Features
- Flame Safety: UL94 V1-certified, limiting fire spread in enclosed or high-risk lighting systems.
- Speedy Cure: Tack-free in 1.5±0.5 h, fully cured in 2.5±0.5 h at 25°C; oven cure ≤0.5 h at 60°C suits batch production.
- Tough & Impact-Resistant: Shore D 52±10, tensile ≥4 MPa, elongation ≥45%, absorbing shock and vibration in transit or outdoor use.
- Heat Dissipation: ≥0.5 W/m·k thermal conductivity aids cooling of high-power LED assemblies.
- Simple Metering: 1:5 mix ratio (A:B) reduces errors and material waste, ideal for automated dispensers.
- Regulatory Alignment: Meets RoHS, REACH, and UL94 V0/V1, satisfying global automotive and lighting standards.
Technical Parameters
|
Parameters
|
Hardener
BZ-6118-8R A
|
Resin
BZ-6118-8R B
|
|
Before curing
|
Appearance
|
Light yellow
clear liquid
|
White liquid
|
|
Viscosity(mPa·s.25℃)
|
60±30
|
7500±1500
|
|
Initial mixed viscosity(mPa·s.25℃)
|
1700±500
|
|
Density(g/cm³.25℃)
|
1.19±0.05
|
1.46±0.05
|
|
Mixing
&
Curing
|
Mix ratio(by weight)
|
A:B=1:5
|
|
Pot life 130±30g(min.25℃)
|
21±7
|
|
Curing condition
|
Room temperature curing
|
|
Surface drying time 30g(H.25℃)
|
1.5±0.5
|
|
Curing time 30g(H.25℃)
|
2.5±0.5
|
|
Curing time(Heated)
|
60℃ heated ≤0.5H
|
|
After curing
|
Color
|
White
|
|
Hardness (Shore D)
|
52±10
|
|
Temperature resistance(℃)
|
-40~120℃
|
|
Flame retardancy UL94
(vertical burning)
|
V1-V0
|
|
Water absorption(24H)
|
≤0.5%
|
|
Thermal conductivity(W/m.k)
|
≥0.5
|
|
Surface resistivity(Ω/sq)
|
≥1.0×1013
|
|
Volume resistivity(Ω.cm)
|
≥1.0×1013
|
|
Tensile strength(MPa)
|
≥4
|
|
Dielectric constant(at 50Hz)
|
≤6
|
|
Breakdown voltage(kV/mm)
|
≥18
|
|
Elongation at break(%)
|
≥45%
|
Product Applications
- Automotive Lighting: Encapsulates headlamps, taillights, and interior lighting modules, withstanding vibration and temperature fluctuations.
- Outdoor LED Fixtures: Seals street lamps, floodlights, and garden lights, providing long-term protection against rain, dust, and UV exposure.
- LED Modules: Protects high-power LED arrays and driver circuits, enhancing thermal management and reliability.
- Architectural Lighting: Insulates facade lighting, landscape lights, and decorative fixtures in urban and commercial environments.
- Industrial Lighting: Encapsulates high-bay lamps and warehouse lighting, withstanding mechanical stress and harsh conditions.
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.
