Product Overview for silicone potting compound:
Silicone potting compound is an electronic encapsulation material based on silicone polymers. It is primarily applied by pouring a liquid two-component (or single-component) mixture into electronic components, where, upon curing, it forms an elastic, three-dimensional network structure.
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Technical Parameters for silicone potting compound:
| Test Items | Test Standard | Units | Product test results | |||
| Part A | Part B | |||||
|
Before Curing
|
1 | Appearance | By eyes | --- | Grey, fluid | White, fluid |
| 2 | Viscosity | GB/T10247- 2008 | 25ºC,mPa·S | 4500~5000 | 4500~5000 | |
| 3 | Density | GB/T 13354-92 | 25ºC,g/cm3 | 1.50±0.05 | 1.50±0.05 | |
| 4 | Mixing Ratio (A : B) | 1:1 | Weight ratio | 100 | 100 | |
| Volume ratio | 100 | 100 | ||||
| 5 | Operating time | Measured | hr | 0.3-0.4 | ||
| 6 | Curing condition | Measured | hr |
4~12 (25ºC, initial cure) |
||
|
0.20 (80ºC) |
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|
After Curing
|
7 | Appearance | By eyes | --- | Grey Elastomer | |
| 8 | Hardness | GB/T 531.1-2008 | Shore A | 50±5 | ||
| 9 | Thermal conductivity | GB/T10297-1998 | w/m·k | ≥0.76 | ||
| 10 | Expansivity | GB/T20673-2006 | µm/(m,ºC) | 210 | ||
| 11 | Moisture Absorption | GB/T 8810-2005 | 24h,25ºC,% | 0.01~0.02 | ||
| 12 | Volume resistivity | GB/T 1692-92 | (DC500V),Ω· cm | 1.0×1016 | ||
| 13 | Dielectric intensity | GB/T 1693-2007 | Kv/mm(25ºC) | 18~25 | ||
| 14 | Temperature Resistance | Measured | ºC | -50~+250 | ||
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Product Applications for silicone potting compound:
The latest silicone potting compounds primarily focus on the precision encapsulation and thermal management of new energy vehicles (specifically the "three-electric" systems and battery packs), third-generation semiconductors (such as IGBT and SiC modules), and 5G communication equipment; core technological developments are centered on "high thermal conductivity," "lightweight foaming," and "vibration resistance across extreme low and high temperatures."
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Packaging & Storage for silicone potting compound:
Standard Packaging: Component A 25kg/drum, Component B 25kg/drum.
Store in a cool, dry place. Shelf life: 6 months.
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