Antique copper coins how to remove patina

1. Mechanical method

Ready-to-use knives (preferably straight knives), brushes (you can use large oil brushes, and cut the brown hair of the tip to only 0.5 to 0.7 cm), needle picking or dental tools for picking, picking, peeling, brushing and other methods to remove The coins are corroded. When using this method to remove rust, attention should be paid to the degree of weight, and this method should not be used for the more precious ancient coins.

2. Heating method

This method is mainly used for shallow corrosion of iron money. When heating, put the coins into the receiving container (such as a metal container such as a pot), you can add some water properly, after heating for three or four minutes with a high heat, take out the coins, and then cover the money with a cold and wet towel, the rust can fall off. It is not appropriate to use this method for "corrupted" money with serious corrosion.

Three, vinegar bubble method

Wash the ancient money before using this method, put it in a small dish, pour a little edible vinegar, take it out after 24 hours, use a brush to remove the residual rust, and finally wash the vinegar with water and use the cloth Just wipe it off and dry.

Four, water washing method

This method is suitable for iron money. Immerse the iron money in distilled water, keep the temperature at 98 ° C during the day, and cool it at night, replace the distilled water in time, and check the degree of rust removal until the rust is removed.

Source: First Silver Network