APG 800 Series Ferrofluid
Type: APG 840

Ferrotec’s APG 840 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 840 Specifications and Physical Properties

Appearance black-brown or red-brown viscous fluid
Carrier Liquid synthetic hydrocarbon
  CGS Units SI Units
Saturation Magnetization (Ms) 220 Gauss 22 mT
Viscosity @27°C 4000 cP 4000 mPa·s
Density @25°C 1.09 g/cc 1.09 103 kg/m3
Pour Point -24 °C -24 °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

Ferrotec APG 800 Series Ferrofluid Additional Information

For more information about material handling, refer to the MSDS (Material Safety Datasheet) for the APG 800 Series family of products. 

Do You Need More Information?

For questions about specific ferrofluid series, ferrofluid applications, or to place an order, contact your Ferrotec ferrofluid solutions representative or use the Ferrofluid Inquiry Form.

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