Firearms made of stainless steel are relatively more resistant to corrosion than blued steel firearms. However, you should still inspect it frequently and clean, lubricate and apply an appropriate rust preventative as required.
Sometimes surface discoloration may be noted, particularly in the grip area of stainless steel handguns, resulting from perspiration. Contact with some types of holsters can also cause stains or rusting. Rusting may also occur as a result of the handgun being exposed to moisture, humidity, salt air or chemicals.
Minor discoloration can usually be removed by rubbing the stained area with an abrasive ink eraser, crocus cloth, or a ' metal polishing" compound. When using any of these abrasives, proceed with care and use light pressure to achieve a blending of 'color with those areas that are not discolored.
Exposed surfaces on the firearm should be cleaned and wiped dry after use or after exposure to adverse conditions. If the firearm is to be stored, coat it with a light film of oil or preservative. Where the firearm is in continuing use, and the
presence of oil or grease would be objectionable, then the external surfaces can be coated (after cleaning and drying) with a paste wax formulated for use on metals. Apply the wax sparingly, allow time for it to dry hard, then buff lightly with a soft cloth. When applying the wax take care that it does not get into the mechanism or on the functioning parts such as the cylinder latch, trigger or cylinder locking notches. A properly applied hard wax coating will not interfere with comfortable gun handling and it will provide a measure of protection against the formation of rust.
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