Rigid Clear PU Encapsulant with Long-Term UV Defense for Outdoor Applications
Product Description
BZ-510 is a polyurethane encapsulating resin formulated for demanding outdoor environments, delivering over 5 years of anti-yellowing and UV protection. With a high hardness rating of 60D, it offers superior structural integrity, low moisture absorption, minimal vapor transmission, and excellent resistance to both high and low temperatures, achieving an IP68 protection grade.
Key Product Features
- Exceptional anti-weathering and UV-blocking capabilities ensure sustained outdoor durability over a 5-year horizon.
- Forms a transparent, high-clarity encapsulating layer with IP68-grade protection against water ingress and dust penetration.
- Two-part PU system with superior flow properties for user-friendly mixing and dispensing.
- Certified to RoHS and REACH standards for global environmental acceptability.
- Optional heat-assisted curing significantly shortens cycle times for enhanced throughput.
Technical Parameters
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Parameters
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Hardener
BZ-510 A
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Resin
BZ-510 B
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Before curing
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Appearance
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Clear liquid
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Clear liquid
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Viscosity(mPa·s.25℃)
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650±150
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450±200
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Initial mixed viscosity(mPa·s.25℃)
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450±150
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Density(g/cm³.25℃)
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1.06±0.05
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1.04±0.05
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Mixing&Curing
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Mix ratio(by weight)
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A:B=1:1
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Pot life 130±30g(min.25℃)
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10-15min
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Curing condition
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Room temperature curing
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Surface drying time 30g(H.25℃)
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0.5-1H
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Curing time 30g(H.25℃)
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2.5-4.5H
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Curing time 30g(heated)
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60℃ heated 0.5-1H
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After curing
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Hardness (Shore D)
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60±5
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Temperature resistance(℃)
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-40~85℃
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Water absorption(24H)
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≤1.0%
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Thermal conductivity(W/m.k)
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≤0.3
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Surface resistivity (Ω/sq)
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≥1.0×1013
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Volume resistivity (Ω.cm)
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≥1.0×1013
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Tensile strength(MPa)
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≥6
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Elongation at break(%)
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≥80%
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Dielectric constant(at 50Hz)
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≥3.5
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Breakdown voltage(kV/mm)
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≥16
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Tensile shear strength(MPa)
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≥2
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Product Applications
- LED light source: Strong adhesion to plastic/metal, IP68 waterproof, ideal for riverside and coastal use.
- LED linear light source: High transmittance, -40°C to 85°C range, 5-year anti-yellowing, salt-spray resistant for harsh outdoor 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 & Shipping & Storage
Hardener: Typically 5KG/ 10KG / 20KG metal or plastic drums.
Resin: Typically 5KG/ 10KG / 20KG 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.
FAQ
Q1: Can this potting compound be used for outdoor electronic applications?
A2: Yes, the weather-resistant properties of this transparent polyurethane potting compound make it suitable for outdoor use, providing protection against UV rays, rain, and temperature fluctuations.
Q2: What are the main features of the Weather-Resistant Transparent Polyurethane Potting Compounds?
A1: This potting compound offers excellent weather resistance, high transparency, strong adhesion, and durability, making it ideal for protecting electronic components from moisture, dust, and environmental damage.
Q3: What types of electronics are compatible with this potting compound?
A5: It is compatible with a wide range of electronic components, including circuit boards, sensors, connectors, and LED assemblies, especially those requiring clear encapsulation and protection from harsh environmental conditions.
Q4: Is the compound easy to apply and cure?
A3: Yes, the potting compound has good flow characteristics for easy application and typically cures at room temperature, forming a tough and flexible protective layer.
Q5: Does the transparent nature of the compound affect its protective qualities?
A4: No, the transparency of the polyurethane potting compound does not compromise its protective features; it still provides excellent insulation and environmental protection while allowing visual inspection of the encapsulated components.
