BZ-6210 is a two-component polyurethane potting compound engineered for insulation, sealing, and protection of lighting products, electronics, electrical appliances, power supplies, and control boards. With excellent fluidity and deep penetration capabilities, it ensures full encapsulation of intricate components, providing robust defense against moisture, dust, and mechanical stress. Certified with UL94 V-0 flame retardancy and compliant with RoHS/REACH regulations, this halogen-free formula delivers reliable performance across -40℃ to 120℃, featuring high thermal conductivity (≥0.5 W/m·k) and low water absorption (≤0.5%) for long-term stability in harsh operating 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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