Flexible and bendable transparent PU Potting Compound For LED strip
BZ-519-3-L PU potting compound is a transparent polyurethane material specifically engineered for LED flexible strips and lighting products. It provides excellent adhesion to LED chips and flexible printed circuits (FPC), delivering up to 2-3 years of anti-yellowing performance while maintaining superior flexibility. This enables flexible LED strips to be installed in curved configurations and achieves IP67-rated waterproofing.
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Parameters |
Hardener BZ-519-3-L A |
Resin BZ-519-3-L B |
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Before curing |
Appearance |
Clear liquid |
Light yellow clear liquid |
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Viscosity(mPa·s.25℃) |
4800±1400 |
800±300 |
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Initial mixed viscosity(mPa·s.25℃) |
2250±750 |
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Density(g/cm³.25℃) |
1.03±0.05 |
1.02±0.05 |
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Mixing&Curing
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Mix ratio(by weight) |
A:B=1:1 |
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Pot life 130±30g(min.25℃) |
36±10min |
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Curing condition |
Room temperature curing |
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Surface drying time 30g(H.25℃) |
7-10 |
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Curing time 30g(H.25℃) |
12-24 |
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After curing
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Hardness (Shore A) |
48±10 |
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Temperature resistance(℃) |
-40~80℃ |
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Water absorption(24H) |
≤1.0% |
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Surface resistivity (Ω/sq) |
≥1.0×1010 |
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Volume resistivity (Ω.cm) |
≥1.0×1010 |
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Tensile strength(MPa) |
≤3 |
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Elongation at break(%) |
≥200% |
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Dielectric constant(at 50Hz) |
≤10 |
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Breakdown voltage(kV/mm)
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≥10 |
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Q1: 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.
Q2: 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.
Q3: 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.
Q4: 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.
Q5: 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.
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