Commemorative Medal | Commemorative Coin Making | Commemorative Medal Customization | Commemorative Medal Manufacturers1
What should I do if the long-collected medal is rusted due to the wrong preservation method or improper handling method? Careful memorial medals/commemorative coins will not withstand the torment of the years, and will leave some rust on the surface, and even the exquisite medals will turn into rusty metal blocks, and the collection value is greatly reduced. The cause is nothing more than these points. The storage environment is humid, and the medals are often touched with sweat-stained hands, and the medals are exposed to the air, which will cause the corrosion rate to increase. After all, the materials for the medals are all alloys or precious metals. Over time, improper protection will naturally lead to rust on the surface. But rusty medals can also be processed by chemical methods. The following is a customized medal manufacturer, Nubo, to answer for you: For medals with lighter oxidation, we can use slow and easy reaction, such as 5 percent dilute sulfuric acid. Wipe the surface gently, and then put it in a dry box after processing. For medals with more oxidation, you can directly put the medals in the solution soak for 3 days, and then store them in a dry box. We can also use post-processing methods to make the medallion produce a natural oxide layer and increase the gloss. The method is as follows: Put the clean and sweat-free medallion into 10% disulfite soak for 15 seconds and take it out. Wipe it with a dry towel before putting it in storage, so that the treated medal is very shiny and will not be corroded again. Related searches: commemorative medal customization
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