Dual-Component PU Encapsulant for Automotive & Outdoor Lighting 6118-R

BZ-6118-8R is a two-part polyurethane potting compound developed for sealing, insulating, and protecting automotive lamps, outdoor LED luminaires, and modules. It combines fast curing, UL94 V0/V1 flame resistance, and high rigidity to boost production efficiency while delivering robust mechanical protection. Fully compliant with RoHS and REACH, it operates reliably across -40°C to 120°C, with thermal conductivity ≥0.5 W/m·k and surface resistivity ≥1.0×10¹³ Ω/sq, ensuring long-term stability in demanding lighting applications.

Key Product Features

Flame Safety – UL94 V1 Certified: rated UL94 V1, curbing flame spread in enclosed or high-risk luminaires.
Fast Cure – Boosts Throughput: tack-free in 1.5±0.5 h, fully cured in 2.5±0.5 h at 25°C; 60°C oven cure in ≤0.5 h, ideal for volume production.
Tough & Shock-Absorbing: shore D 52±10, tensile ≥4 MPa, elongation ≥45%, dampening vibration and impact from transit or outdoor exposure.
Thermal Conductivity – Aids LED Cooling: ≥0.5 W/m·k, facilitating heat dissipation in high-power LED modules.
Simple 1:5 Ratio – Minimizes Waste: low-error metering (A:B = 1:5), compatible with automated dispensing lines.
Full Regulatory Compliance: meets RoHS, REACH, and UL94 V0/V1, satisfying global automotive and lighting standards.

Technical Parameters 

Product Applications

1. Automotive Lighting: Encapsulates headlamps, taillights, and interior lighting modules, withstanding vibration and temperature fluctuations.
2. Outdoor LED Fixtures: Seals street lamps, floodlights, and garden lights, providing long-term protection against rain, dust, and UV exposure.
3. LED Modules: Protects high-power LED arrays and driver circuits, enhancing thermal management and reliability.
4. Architectural Lighting: Insulates facade lighting, landscape lights, and decorative fixtures in urban and commercial environments.
5. Industrial Lighting: Encapsulates high-bay lamps and warehouse lighting, withstanding mechanical stress and harsh conditions.

Directions for Use

1. Pre-potting Preparation: Calibrate scales, prepare potting tools, cleaning tools, check machine settings, check vacuum pump force, etc. 
2. Product Pre-treatment: Place product on a level surface or fixture. Remove dust, clean, degrease, and dry if necessary.
3. 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.
4. Mixing & Stirring: Manual operation requires thorough stirring or using electric stirrers to ensure homogeneous mixing. Machine potting requires sufficient stirring speed, adjust as needed.
5. Uniform Potting: Manual operation should be done in small, multiple batches to ensure uniformity. Machine potting should follow the programmed path for quantitative dispensing.
6. Inspection or Secondary Potting: After potting, visually inspect as needed. Perform touch-up, bubble removal, or secondary potting if required.
7. 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.
8. Final Product Confirmation: Perform visual inspection and performance testing as required by the customer.

Packing

1. Hardener: Typically 5KG/10KG/25KG/200KG metal or plastic drums.
2. Resin: Typically 25KG/200KG metal or plastic drums.