The most common coating for Neodymium magnets is Nickel + Copper +Nickel (Ni + Cu + Ni). This coating offers the magnet relatively goodprotection from corrosion and passive applications. If the magnet willbe exposed to moisture or liquid then consider the use of an organiccoating such as Epoxy. A hard wearing coating, Epoxy is suited toapplications where the magnet will come under some friction or knocking.
Magnets are readily available in Blocks, Discs, Cylinders & Rings. Magpole Technology specializes in the supply of short-run prototypemagnets including Arc Segments, various magnetic orientations etc.If you need a magnet size that we don't carry in stock, submit aDesign-a-Magnet enquiry for a quote on your custom magnet design.