Made from a plastic film that contains a ferromagnetic slurry of fine nickel particles that align themselves along magnetic field lines
Film can be easely cut with scisors and knifes. Sold by Applied Magnets®
Magnetic field viewing film is used to visualize magnetic fields. It is a translucent paper-like substance which makes magnetic fields visible. Most are made from a plastic film that contains a ferromagnetic slurry of fine nickel particles that align themselves along magnetic field lines. The general principle of operation is that magnetizable nickel particles are suspended in a colloidal form in a gelatinous material. This allows enough freedom for the particles to align with an externally applied magnetic field - thereby displacing the colored fluid and causing a color change at the surface of the film. Recommended for ages 8 and older.
Most Helpful Customer Reviews
I bought this film to use in an industrial application just to check the alignment of magnets behind a protective cover. In this application, it works quite well.
A few things to keep in mind:
1) This film can build up a memory. Do not leave it in proximity with a strong field for long periods of time. Short exposure times will help prevent this. Otherwise, you will have to replace the film.
2) It does not show lines of magnetic flux. You can see the magnet and get an idea of where the major part of the flux is, but that is about it. The coloration does drop off as the field decreases, but it isn't as impressive to students as using iron filings.
3) The film does not self clear. Once the film is removed from the area of the magnet, the residual color from the exposure is still there until the next use. This is not an issue, simply how it works. To erase the image, I simply wipe the film over the magnet and the color becomes...
Cool! interesting to see the effects of magnet on film.
The authorised South African distributor of this product is under no obligation to honour the manufacture's guarantees/warranties or to provide after-sales service.
Please note that this item is imported from the USA, and is designed to be used in the USA. In addition, if the unit is powered it will come with a US plug and an adapter/transformer may be required. Please click here for more information on power requirements, or check with us if you are unsure or need any assistance!
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