What Happens to Neodymium Magnets in High Humidity? How moisture and corrosion impact magnet performance.
Neodymium magnets are powerful and widely used, but they are sensitive to moisture. In high humidity environments, these magnets can absorb moisture through tiny cracks or imperfections in their protective coating. Over time, this exposure can cause the magnet’s surface to corrode, leading to rust and weakening the magnetic force. If the corrosion penetrates deep enough, it can even cause the magnet to crumble or lose its strength completely. That’s why it’s important to use neodymium magnets with a high-quality protective coating and to store them in dry, sealed containers whenever possible. Regular inspection can help catch early signs of damage and prevent magnet failure.
