Ferrite or NdFeB powder mixed with rubber or elastomere as binder provides a low cost or strong flexible magnet in all kind of shapes, like foil, sheet, strip, band and profile.
General Information: Ferrite material can also be mixed with rubber. Flexible magnet materials are manufactured through both extrusion and calandering depending on required size. Standard grades of flexible materials have maximum energy products of 0.6MGOe to 1.6MGOe. Whereas, the advantage is having a flexible magnet, with the processes of calandering, pressing or extrusion; the disadvantage is low magnetic force.
Temperature Effects: The magnetic properties of flexible magnets have a linear degradation to temperature similar to that of ferrite magnets. A larger factor is the binding agent used to make the magnets flexible. These binding materials usually begin to flow at 121° Centigrade.
Applications: Flexible magnets are used in a wide array of applications from magnetic signs, toys, gaskets, games, CRT focusing, displays, door and cabinet closures, tools, and business cards to name a few. Strips, tapes, bars, sheets, rings, etc. are used for stepping motor, sensor, advertizing, toys, didactic means for offices and schools.
Data Sheets: Rubber Bonded Magnets