UL94-V0 Excellent Electrical Properties White Polyurethane Potting Compounds
Product Description
This is a high-performance white potting compound - BZ-6800(WT) polyurethane potting compound, which is a UL94-V0 certified polyurethane material (UL certification No.: QMFZ2.E352175). It not only complies with RoHS and REACH standards but also features excellent structural strength, superior adhesion to substrates, outstanding mechanical properties, and superior electrical performance. Therefore, it is widely used as a potting material in electronic products and electrical equipment.
Key Product Features
1. Low viscosity, compatible with both manual operation and automated equipment applications
2. Exceptional resistance to extreme low and high temperature conditions
3. Superior electrical insulation performance and reliable operational stability
4. Top-tier flame retardant capabilities, holding a UL94-V0 fire safety rating
5. Outstanding waterproof and moisture-proof characteristics, boasting an ultra-low water absorption rate
6. Strong adhesive properties for bonding with commonly used plastics and metal materials
Technical Parameters
|
Parameters
|
Hardener
BZ-6800(WT) A
|
Resin
BZ-6800(WT) B
|
|
Before curing
|
Appearance
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Brown liquid
|
Wihte liquid
|
|
Viscosity(mPa·s.25℃)
|
150±100
|
3700±1300
|
|
Initial mixed viscosity(mPa·s.25℃)
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1300±300
|
|
Density(g/cm³.25℃)
|
1.15±0.05
|
1.53±0.05
|
|
Mixing&Curing
|
Mix ratio(by weight)
|
A:B=20:100
|
|
Pot life 130±30g(min.25℃)
|
25±10
|
|
Curing condition
|
Room temperature curing
|
|
Surface drying time 30g(H.25℃)
|
6-9
|
|
Curing time 30g(H.25℃)
|
9-13
|
|
Curing time(Heated)
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60℃ heated 1-2H
|
|
After curing
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Color
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White
|
|
Hardness (Shore A)
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40-55
|
|
Temperature resistance(℃)
|
-40~120℃
|
|
Flame retardancy UL94
(vertical burning)
|
V-0(3mm)
|
|
Water absorption(24H)
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≤0.5%
|
|
Thermal conductivity(W/m.k)
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≥0.5
|
|
Surface resistivity(Ω/sq)
|
≥1.0×1013
|
|
Volume resistivity(Ω.cm)
|
≥1.0×1013
|
|
Tensile strength(MPa)
|
≥3
|
|
Elongation at break(%)
|
≥50%
|
|
Dielectric constant(at 50Hz)
|
≥6
|
|
Breakdown voltage(kV/mm)
|
≥18
|
Product Applications
- Modules.
- Controllers.
- LED Power Supply.
- Communication Equipment.
- Power Tools.
- Other electronic products and electrical equipment
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/25KG/200KG metal or plastic drums.
- Resin: Typically 25KG/200KG 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.
