To prolong the life of your magnet, rinse and dry thoroughly after each use. It also doesn't hurt to rinse your ropes and wring them out.  Do not store anything damp in our airtight cases. This will lead to a corroded magnet, compromised rope and a smelly airtight case.  Due to the abrasive nature of magnet fishing, the surface coating will eventually become scratched, but that will not affect the pull strength of the magnet. To prolong the life of your magnet, consider adding an additional marine protectant or fluid film to help inhibit corrosion.  If you’re magnet fishing in saltwater you may want to consider one of our anti-corrosion magnets. These are made with a special stainless casing which makes them corrosion resistant.