BZ-6210 is a two-component polyurethane encapsulant designed for insulation, sealing, and protection of lighting fixtures, electronics, power supplies, and control boards. Its superior flow and deep-fill capability ensure complete coverage of complex assemblies, offering reliable resistance against moisture, dust, and mechanical impact. Rated UL94 V-0, RoHS/REACH-compliant, and halogen-free, this formulation performs steadily from -40℃ to 120℃, with thermal conductivity ≥0.5 W/m·k and water absorption ≤0.5%, ensuring long-term durability in demanding environments.
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Parameters |
Hardener BZ-6210 A |
Resin BZ-6210 B |
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Before curing |
Appearance |
Brown liquid |
Black liquid |
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Viscosity(mPa·s.25℃) |
250±100 |
4000±1000 |
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Initial mixed viscosity(mPa·s.25℃) |
1350±350 |
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Density(g/cm³.25℃) |
1.12±0.05 |
1.57±0.05 |
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Mixing&Curing
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Mix ratio(by weight) |
A:B=1:4 |
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Pot life 130±30g(min.25℃) |
25±10 |
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Curing condition |
Room temperature curing |
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Surface drying time 30g(H.25℃) |
5-8 |
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Curing time 30g(H.25℃) |
8-12 |
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Curing time(Heated) |
60℃ heated 1-2H |
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After curing
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Color |
Black |
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Hardness (Shore A) |
50±5 |
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Temperature resistance(℃) |
-40~120℃ |
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Flame retardancy UL94 (vertical burning) |
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) |
≥1.0×1012 |
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Volume resistivity(Ω.cm) |
≥1.0×1012 |
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Dielectric constant(at 50Hz) |
≤10 |
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Breakdown voltage(kV/mm) |
≥16 |
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Elongation at break(%) |
≥40% |
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