Dual Color Electronic Potting Silicone Compound Gel 800mPa For LED Driver 3801
Dual-Color Silicone Potting Compound For High-Power LED Lightings
BZ-3801 is a two-component room-temperature-curing condensation-type silicone potting compound engineered specifically for high-power LED lighting systems, featuring ultra-soft flexibility, balanced working time, and dual-color options (white/black). With wide temperature tolerance (-50~180℃) and RoHS compliance, it provides exceptional protection against thermal stress, vibration, and moisture for high-power LED drivers, control modules, and heat-sensitive components. As a condensation-curing product, its cross-linking reaction requires atmospheric moisture—critical operational note: potted high-power assemblies must not be hermetically sealed immediately after pouring, as this will trap moisture and cause incomplete curing, compromising heat dissipation and long-term reliability.
Key Product Features
- Ultra-Soft Thermal Stress Resistance: Cures to a Shore A hardness of 15-30A, offering superior flexibility to absorb thermal expansion/contraction in high-power LED systems, preventing component damage from temperature cycling
- Balanced Working Time: Provides a 50±15 minute pot life at 25℃—longer than BZ-3701 for complex manual operations, yet efficient enough for automated machine potting, balancing productivity and operational flexibility
- Dual-Process Compatibility: Optimized for both manual potting (with excellent fluidity for precise application) and automated machine dispensing (consistent viscosity for stable production lines), supporting diverse manufacturing workflows
- Dual-Color Options: Available in white (aesthetic appeal for visible components) and black (light-blocking for heat management in high-power fixtures), catering to different LED design requirements
- Wide Temperature Stability: Maintains consistent mechanical and electrical properties across -50℃ to 180℃, ensuring reliable performance in extreme outdoor and industrial environments
Technical Parameters
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Parameters |
Part A BZ-3801 |
Part B BZ-3801 |
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Before curing |
Appearance |
White/ Black liquid |
Clear liquid |
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Viscosity(mPa·s.25℃) |
1500-3000 |
45-55 |
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Initial mixed viscosity(mPa·s.25℃) |
800-1300 |
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Density(g/cm³.25℃) |
1.22±0.05 |
0.95±0.05 |
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Mixing & Curing
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Mix ratio(by weight) |
A:B=10:1 |
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Pot life 130±30g(min.25℃) |
50±15 |
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Curing condition |
Room temperature curing |
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Surface drying time 30g(H.25℃) |
1H-3H |
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Curing time 30g(H.25℃) |
2.5H-5H |
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After curing
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Color |
White/ Black |
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Hardness (Shore A) |
15A-30A |
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Temperature resistance(℃) |
-50~180℃ |
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Water absorption(24H) |
≤0.5% |
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Surface resistivity(Ω/sq) |
≥1.0×1014 |
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Volume resistivity(Ω.cm) |
≥1.0×1013 |
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Elongation at break(%) |
≥60% |
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Dielectric constant(at 50Hz) |
≤5 |
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Breakdown voltage(kV/mm) |
≥15 |
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Product Applications
- High-Power Outdoor LED Lighting: Encapsulates drivers and control modules in stadium lights, high-bay industrial lights, and high-output streetlights where thermal stress management is critical
- Thermally Intensive LED Fixtures: Ideal for potting high-power LED grow lights, stage lighting, and UV LED systems that generate significant heat and require flexible encapsulation to prevent component failure
- Vibration-Prone LED Installations: Suitable for high-power LED lighting in heavy machinery, transportation vehicles, and outdoor structures subject to constant movement, where vibration resistance is essential
- Dual-Color LED Design Needs: Provides both white (clean aesthetic for architectural lighting) and black (light absorption for heat sink integration) options for high-power LED systems with specific visual or thermal requirements
Critical Curing & Handling Precautions for High-Power Applications
BZ-3801 utilizes a condensation curing mechanism that depends on ambient moisture for complete cross-linking—critical for high-power LED performance:
- Avoid Early Hermetic Sealing: Potted high-power assemblies must remain in a well-ventilated environment with 40%-70% relative humidity for at least 24 hours before structural sealing. Premature sealing will trap moisture, leading to incomplete curing, reduced thermal conductivity, and potential component overheating.
- Thick Section Potting for High-Power Systems: For high-power LED drivers requiring potting thickness >3cm, use layered pouring with 2-3 hour intervals between layers. The ultra-soft formulation ensures uniform curing throughout thick sections, maintaining consistent heat dissipation and flexibility.
- Humidity Control for Reliable Curing: In dry manufacturing environments (<40% RH), extend curing time by 50% or introduce controlled moisture (e.g., humidifier) to ensure complete reaction. This is especially important for high-power systems where curing defects can lead to catastrophic failures.
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.
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