(Quoted from Sign & Digital Graphics. Full article here.)
Most of today’s magnetic printable substrates are created using a rubber-ferrite media with an ink-receptive top-layer. Printable magnetic material is available in both pre-cut sheets and rolls of various lengths. For many years, 24" was the widest available width, but a growing number of manufacturers now offer wider materials. One thing to keep in mind with wider media is that magnets are heavy. Some manufacturers offer those wider rolls in shorter lengths to keep the weight down. Make sure the roll-weight is not greater than what the printer’s feed/take-up system can handle. Here are some tips for working with this material.
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