UL94-V0 Grey High Temperature Resistance insulation Electrical Potting Compound
Product Description
The BZ-3900 is a UL94-V0 high-performance electronic potting compound. As a silicone-based material, it cures into an elastomer with a temperature range of-60 to 220°C, high thermal conductivity, and excellent high-frequency electrical performance. It also provides repairability to mitigate mechanical stress and tension caused by thermal shock and vibration, enabling your electronic products to operate stably in harsh environments.
Key Product Features
- Two-component addition-cure silicone, curable at room temperature or with heat, featuring excellent fluidity.
- Possesses good thermal conductivity, insulation properties, and flame retardancy (UL94-V0).
- Complies with ROHS and REACH requirements.
- Meet the requirements of UL94-V0 flame retardant , UL yellow card No.QMFZ2.E352175
- Resistant to high and low temperature shocks, with outstanding weatherability, ensuring potting products operate normally in a wide temperature range (-60～220℃).
Technical Parameters
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Parameters
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Part A
BZ-3900
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Part B
BZ-3900
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|
Before curing
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Appearance
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Grey liquid
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Milky white liquid
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Viscosity(cps.25℃)
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2000±500
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2000±500
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Initial mixed viscosity(cps.25℃)
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2000±500
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|
Density(g/cm³.25℃)
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1.56±0.05
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1.56±0.05
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|
Mixing
&
Curing
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Mix ratio(by weight)
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A:B=1:1
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|
Pot life 130±30g(min.25℃)
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45±15
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Curing condition
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Room temperature curing
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Surface drying time 30g(min.25℃)
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60-120min
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Curing time 30g(H.25℃)
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3-6H
|
|
After curing
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Color
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Grey
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|
Hardness (Shore A)
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48±8A
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|
Temperature resistance(℃)
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-60~220℃
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Water absorption(24H)
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≤0.5%
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Surface resistivity(Ω/sq)
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≥1.0×1014
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Volume resistivity(Ω.cm)
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≥1.0×1013
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Elongation at break(%)
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≥60%
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Dielectric constant(at 50Hz)
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≤3.5
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|
Breakdown voltage(kV/mm)
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≥20
|
|
Thermal conductivity(w/m.k)
|
≥0.8
|
|
Flame retardancy UL94
|
V0(1.5mm)
|
Product Applications
- power supplies:Tolerant to high and low temperatures, with excellent thermal conductivity and repairability
- new energy battery packs:Flame-retardant V0 filling, heat-resistant, and repairable.
- photovoltaic inverters:High thermal conductivity, High temperature aging resistance, Anti-vibration;
- Electronic Modules, Electrical Modules Circuit Boards :These power devices require high thermal conductivity and temperature resistance requirements,The BZ-3900 fully meets these performance requirements.
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.
9. This series of products are room-temperature-curing, addition-cure two-component silicone. During the dispensing process, avoid contact with the following three types of materials to prevent reactions that may affect the curing effect:
a. Organotin compounds and organotin-containing silicone rubber.
b. Sulfur, sulfides, and sulfur-containing materials.
c. Amine compounds and amine-containing materials.
10. It should be noted that during manual operation, when vacuumizing the mixed A+B adhesive, the vacuum pressure must be controlled to ensure the adhesive is not completely sucked out of the container by the vacuum.
Packing & Shipping & Storage
- Part A: Typically supplied in 25kg sealed plastic drums.
- Part B: Typically supplied in 25kg sealed 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.
FAQ:
Q1: What are the primary applications of High-Performance Silicone Potting Compounds?
A1: High-Performance Silicone Potting Compounds are widely used for protecting electronic components, sensors, and circuit boards from moisture, dust, vibration, and thermal shock. They are ideal for automotive, aerospace, and industrial electronics applications.
Q2: What temperature range can High-Performance Silicone Potting Compounds withstand?
A2: These silicone potting compounds typically withstand a broad temperature range, from approximately -60°C to +220°C, making them suitable for extreme environmental conditions.
Q3: Are these silicone potting compounds electrically insulating?
A3: Yes, High-Performance Silicone Potting Compounds provide excellent electrical insulation, helping to prevent short circuits and ensuring reliable performance of electronic assemblies.
Q4: How is the curing process performed for these silicone potting compounds?
A4: The curing process can vary depending on the specific formulation but generally involves room temperature curing or heat curing. They typically cure to a solid elastomer within hours to a day, providing durable protection.
Q5: Are High-Performance Silicone Potting Compounds resistant to chemicals and moisture?
A5: Yes, these compounds exhibit strong resistance to moisture, water, and various chemicals, which helps enhance the longevity and reliability of the encapsulated components.
