Japanese Brown may be used on bronze, brass, and copper resulting in a golden brown finish, but it is most commonly used hot or cold on iron and steel. When applied cold to iron or steel, a brown rust will form. On heated iron or steel, a dark chocolate finish will result. Heat will darken the colour as well as reduce mottling. If the metal is smooth it will be a shinier patina. If the metal surface is sandblasted it will look more satin. Heat will darken the color as well as make it less mottled. If applied cold, rinsing is not mandatory, but you must leave the patina alone for 24 hours before applying a clear sealer. If applying Japanese Brown hot, rinsing is not necessary. Do not use on aluminum, galvanized metals or stainless steel.
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