25.4x25.4x9.53mm Waterproof Magnet

The magnets with plastic coating are called as waterproof magnets and unbreakable magnets.Ordinary neodymium magnets are easy to be corroded in humid environment, then shorten the working life.But the working life of waterproof magnets are much longer. Besides plastic coated magnets, the rubber coated magnets and PVC magnets are all known as waterproof magnets.