Things You'll Need
Instructions
Protect your antique sword from further damage by applying with fine mineral oil, such as Choji sword oil. This will serve as an initial cleaning and form a protective barrier between the metal in the sword and the outside air, preventing the formation of rust. Use a well-washed, white cotton cloth to spread the oil onto the surface.
Wrap 300-grit sandpaper around a sanding block. With one hand, hold your sword by its handle with the blade end up on a support, such as a wooden board.
Gently stroke the sandpaper over the rust spot, moving in the same direction with each pass, until it is removed. Exercise care to avoid scratching other areas of the blade. If the spot is quite small, wrap the sandpaper over the end of a pencil and rub gently to remove the rust.
Remove the scratches left from removing the rust by using a higher grit sandpaper in the opposite direction that you used previously.
Wipe the blade with methylated spirits or rubbing alcohol on a soft cloth. This will remove all traces of old oil coats and any other dust or dirt from the blade.
Apply a new coat of oil, again using a soft white cotton cloth.