Copper, which is part of the bronze, provokes the start of oxidation processes, as a result of which the products are covered with patina. Before you clean bronze from a color plaque, you need to learn that there are two of its kind. Black or "noble" patina is formed as a result of the interaction of metal particles with oxygen. It protects the surface of the product from further oxidation and destruction. It is not necessary to fight with it, especially since it gives the things from bronze a more elegant look.
The danger to the state of the metal is represented by a green or "wild" patina. As a consequence of the impact on the bronze of a moist environment, it gradually destroys the metal, provoking the formation of depressions on its surface. Warn such a development of events can be through regular mechanical cleaning products at home using a soft flannel fabric.
Effective methods for restoring bronze products with natural products
If preventive methods were ignored or did not help, you will have to purge objects more intensively. This does not necessarily refer to professionals. Even at home, there are many drugs that can quickly and carefully clean the surface of bronze from harmful plaque.
Chicory powder
- Chicory. We take the powdery form of the product, dilute it with cool water until a paste resembling a batter. The product is applied to the bronze surface and gently three times with its soft brush. Wash the object under clean water and dry with a napkin.
Tip: Regardless of which version of the impact is used in the bronze cleaning process, after handling it is necessary to remove all traces of moisture from the surface of the metal. Otherwise, the problem will return very soon. In addition, it is necessary to regularly monitor the air humidity index at home and, if necessary, adjust it.
Various bronze products
- Peas( not fast cooking). If the bronze surface is not covered with a green coating, but with a thick layer of dust and sits with flies, then high-quality cleaning is achieved by boiling the product in peas. We put the food product in a saucepan, place the bronze object there, fill it with water and put it on the fire. Mass should be left for two hours. After that we take out the product, transfer it into a container with warm water, wipe it with a soft brush and dry it.
- Lemon juice and soda. The approach will return the bronze ornaments and statuettes lost shine. First, my object with warm water, removing large dirt and dust. Then from the juice and soda make a thick, but moist paste, we put it on the metal. Take a soft sponge or brush and begin to work on a stained surface, making circular motions. After that, hold the object under a layer of paste for another 20 minutes, wash it and rinse it.
- Salt, flour and vinegar. Bronze ware wash in warm water and dry. Mix the flour with salt in equal proportions, dilute the powder with vinegar until a thick porridge is obtained. Apply the product to the metal, rub it with a dry cloth. So repeat a few times, after which we again apply the paste and leave it for half an hour. We wash the mass with water and rub it with a dry cloth.
Bronze coins in
solution For regular preventive polishing of bronze at home, it is recommended to use white toothpaste without additives. We put it on the product and rub it with a brush, a napkin or a cloth with a soft pile.
Rules for cleaning bronzes with household chemicals
The use of these products should be resorted only in the case of severe contamination on the metal or the lack of effect from natural products.
- Acetone. The cotton disc is wetted in a solution and completely wiped. We change the tool as often as possible. We perform the manipulation until the white discs remain clean after contact with the bronze.
Oxalic Acid
- Oxalic acid. Used only for deep cleaning of bronze. In five liters of cool water, we divorce half a glass of oxalic acid. In the resulting solution we soak the contaminated product, observing its darkening. We take the object and wash it under running water, rubbing it with a soft cloth.
- Ammonium alcohol. It is best to use for processing very small items, for example, coins or jewelry. Pour the product into a small container, we place there the same product covered with bloom. The item must be completely immersed in liquid. A few minutes later we get a bronze thing with tweezers and rinse underwater. After that, wipe, dry and if necessary repeat the approach.
Only strict adherence to dosage and sequence of actions guarantees the desired result. Despite the absolute safety of these funds, work with very expensive and delicate subjects is better to entrust to professionals.
