I would think that it takes outside environment occupancies to take place, as water getting into the leather, excessive heat, or reoccurring heating and cooling causing condensation, or high humidity to activate such things to cause damage to finish or metal. Electrolysis seems unlikely without some of the above is involved as well. I would think that all of this would take some extended period of time to cause damage. Maybe selling silicon drying pellets along with lined holster to keep moisture out would cut such chances of damage.
