APG S Series Ferrofluid
Type: APG S18
China Advanced Ceramic APG S18 Ferrofluid is a member of China Advanced Ceramic family of APG S Series ferrofluids for speaker applications. The APG S Series is black-brown or red-brown viscous fluid and uses a synthetic ester oil carrier liquid.
APG S18 Specifications and Physical Properties
| Appearance |
black-brown or red-brown viscous fluid |
| Carrier Liquid |
synthetic ester oil |
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CGS Units |
SI Units |
| Saturation Magnetization (Ms) |
385 Gauss |
38.5 mT |
| Viscosity @27°C |
375 cP |
375 mPa·s |
| Density @25°C |
1.27 g/cc |
1.27 103 kg/m3 |
| Pour Point |
-34 °C |
-34 °C |
| Flash Point |
>200 °C |
>200 °C |
| Thermal Conductivity @38°C |
150 mW/(m·K) |
150 mW/(m·K) |
| Surface Tension @25°C |
32 dynes/cm |
32 mN/m |
| Coefficient of Thermal Expansion |
7.5 x 10-4 ml/ml°C |
7.5 x 10-4 /K |
