As a kind of rare earth strong magnet material, sintered NdFeB(neodymium) magnet is widely used in various fields because of its excellent magnetic properties. But NdFeB(neodymium) magnets are not waterproof or corrosion&rust resistant, unlike SmCo and ferrite magnets china.Even the neodymium magnet with a common coating can not be used in a humid environment for a long time without rust and corrosion.So waterproof(also called rustproof) magnets are usually mean waterproof magnets.
The waterproof magnets in this category are neodymium with PVC coated, such PVC coated neodymium magnets are mono-pole magnets and used in pairs, and known as PVC invisible magnetic buttons and PVC wa...