APG 800 Series Ferrofluid
Type: APG 836
Ferrotec’s APG 836  Ferrofluid is a member of Ferrotec’s family of APG 800 Series ferrofluids for speaker applications. The APG 800 Series is black-brown or red-brown viscous fluid and uses a synthetic hydrocarbon carrier liquid.
APG 836 Specifications and Physical Properties
    
      | Appearance | black-brown or red-brown viscous fluid | 
    
      | Carrier Liquid | synthetic hydrocarbon | 
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      |  | CGS Units | SI Units | 
   
    
      | Saturation Magnetization (Ms) | 220 Gauss | 22 mT | 
    
      | Viscosity @27°C | 2000 cP | 2000 mPa·s | 
    
      | Density @25°C | 1.08 g/cc | 1.08 103 kg/m3 | 
    
      | Pour Point | -30 °C | -30 °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 |