Coating is important for neodymium magnets with salt spray resistance and excellent moisture resistance . because neodymium magnet contain iron (Fe) at least 40%, The iron is easy to be rusty. Technician team of CMS Magnet are positive to research and develop magnet surface protection technology and obtain improvement. China Magnet Source Material Limited is able to manufacture kinds of coated neodymium magnets, including nickel, nickel -copper- nickel, i.e NiCuNi three layers, Zinc, silver , gold, stannum , i.e Sn, Cr+3 +Zn, black nickel, Ni+Sn , phosphatizing. The Ni+Sn coating magnets of salt spray testing time can last120 hours. We guarantee that magnets from our company can work under harsh condition and all coatings are in line with ROHS standards.

Storage of coated neodymium magnets

Compared with SmCo magnet and ferrite magnet and alnico magnet, coating neodymium magnet is easier to be rusty. So, How store magnet is important. Some customer may place order magnet seasonaly, it is time to pay attention on storage matters. Do not put magnet into moisture place or poor air circulation condition; Even if the magnet is qualified with salt spray test, if the storage temperature is much different, the magnet is easy to be rusty; Coated neodymium magnets should not be placed in a highly humid place for a long time, should be placed in a cool and dry place;