Special Memory Horseshoes (i.e customers own horseshoes) are a customised item and do not have a warranty period if they are made from steel.
We clean, treat and polish owners horseshoe to a shine finish without removing the surface metal which would change the unique characteristics/appearance of the horseshoe.
Whilst we try to remove visible rust, the conditions to which horseshoes have been exposed mean that it is impossible to guarantee that rust or tarnishing will not reappear in time.
This time period is dictated by the atmosphere in which the horseshoe is kept when returned to the owner. Regular polishing will slow down the rusting. Lacquer can be applied to partially seal the surface and slow down rusting but it is not possible to guarantee that rust particles particularly in nail holes will not reappear in time.
Sunlight and damp will damage the surface of any material as nature intended, this includes lacquers and paints.