BZ-6118-8R is a high-performance two-component polyurethane potting compound designed for isolation, sealing, and protection of automotive lamps, outdoor LED fixtures, and LED modules. With fast curing times, UL94 V0/V1 flame retardancy, and high hardness, it balances production efficiency with mechanical durability. Compliant with RoHS and REACH regulations, this formula delivers reliable performance across -40℃ to 120℃, featuring excellent thermal conductivity (≥0.5 W/m·k) and ultra-high electrical resistivity (≥1.0×10¹³ Ω/sq) for long-term stability in harsh lighting applications.
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Parameters |
Hardener BZ-6118-8R A |
Resin BZ-6118-8R B |
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Before curing |
Appearance |
Light yellow clear liquid |
White liquid |
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Viscosity(mPa·s.25℃) |
60±30 |
7500±1500 |
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Initial mixed viscosity(mPa·s.25℃) |
1700±500 |
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Density(g/cm³.25℃) |
1.19±0.05 |
1.46±0.05 |
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Mixing & Curing
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Mix ratio(by weight) |
A:B=1:5 |
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Pot life 130±30g(min.25℃) |
21±7 |
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Curing condition |
Room temperature curing |
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Surface drying time 30g(H.25℃) |
1.5±0.5 |
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Curing time 30g(H.25℃) |
2.5±0.5 |
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Curing time(Heated) |
60℃ heated ≤0.5H |
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After curing
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Color |
White |
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Hardness (Shore D) |
52±10 |
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Temperature resistance(℃) |
-40~120℃ |
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Flame retardancy UL94 (vertical burning) |
V1-V0 |
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Water absorption(24H) |
≤0.5% |
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Thermal conductivity(W/m.k) |
≥0.5 |
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Surface resistivity(Ω/sq) |
≥1.0×1013 |
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Volume resistivity(Ω.cm) |
≥1.0×1013 |
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Tensile strength(MPa) |
≥4 |
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Dielectric constant(at 50Hz) |
≤6 |
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Breakdown voltage(kV/mm) |
≥18 |
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Elongation at break(%) |
≥45% |
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