Magneto-Rheological Fluid

MRF-122EG Magneto-Rheological Fluid - 1 Liter

MRF-122EG Magneto-Rheological Fluid - 1 Liter

Thank you! Your submission has been received!
Oops! Something went wrong while submitting the form.
Product Information

Product Information:

LORD MRF-122EG fluid is a hydrocarbon-based magneto-rheological (MR) fluid formulated for general use in controllable, energy-dissipating applications such as shocks, dampers and brakes.

MRF-122EG fluid is a suspension of micron-sized,magnetizable particles in a carrier fluid. When exposed to a magnetic field, the rheology of MRF-122EG fluid reversibly and instantaneously changes from a free-flowing liquid to a semi-solid with controllable yield strength. Altering the strength of the applied magnetic field precisely and proportionally controls the consistency or yield strength of the fluid.

MRF-122EG fluid can be used in valve mode (fluid flowing through an orifice) or in shear mode (fluid shearing between two surfaces). In the absence of a magnetic field, MRF-122EG fluid flows freely or allows free movement. Upon application of a magnetic field, the fluid’s particles align with the direction of the field in chain-like fashion, thereby restricting the fluid’s movement within the gap in proportion to the strength of the magnetic field.

Features and Benefits

  • Fast Response Time – responds instantly and reversibly to changes in a magnetic field.
  • Dynamic Yield Strength – provides high yield strength in the presence of a magnetic field and very low yield strength in the absence of a magnetic field; allows for a wide range of controllability.
  • Temperature Resistant – performs consistently throughout a broad temperature range, meeting the requirements of demanding applications such as automotive shock absorbers.
  • Hard Settling Resistant – provides high resistance to hard settling; easily redispersed.
  • Non-Abrasive – formulated to not abrade the devices in which the MR fluid is used.


Dark Gray Liquid

Viscosity, Pa-s @ 40°C (104°F)

Calculated as slope 500-800 sec-1

0.042 ± 0.020

Density, g/cm3 (lb/gal)

2.28 (2.48)

Solids Content by Weight, %


Flash Point, °C (°F)

>150 (>302)

Operating Temperature, °C (°F)

-40 to +130 (-40 to +266)