Ferrofluid From VCR Tapes

Chris who hacks with us on Saturday ordered 4 ounces of ferrofluid to experiment with today and then the chat room found a link to making a crude version from old magnetic tape.  I’m trying my hand at making some with the worst VHS tapes in my collection. Tonight Total Recall gets melted in acetone nail polish remover.

Update:

I soaked the tape in polish remover for 24hrs and did not see much oxide disolved, so I added straight acetone from the paint store and after 4 days had not disolved.   I’ll try other solvents later.

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