What is Ferrofluid? In short, it is a liquid that responds to magnets and magnetic fields. The longer answer is ferrofluid is an extremely fine powder, coated with a soap-like material called a surfactant, suspended in a mineral oil liquid base. The resulting magnetic suspension is called a ferrofluid.
When no magnetic field is present, ferrofluid behaves and flows like a normal liquid. However, when a magnet or magnetic field is introduced, the ferrofluid is attracted to the field. Spikes then form along the magnetic field lines when the magnetic surface force exceeds the stabilizing effects of fluid weight and surface tension.
The results are spectacular and sometimes other-worldly.
PLEASE NOTE: Ferrofluid will evaporate when exposed to the open air. As the ferrofluid evaporates , the fluid loses some of it's magnetic properties. Any sculptures created will lose their jagged edges. Also, please be sure to replace the bottle cap when not in use.
ALSO NOTE: Ferrofluid can be very messy! Use the enclosed pipette/dropper for maximum control and containment. Wear gloves when possible and use the fluid on a clean and open workspace.