Earlier we have discussed that if the gold and tungsten gold-plated products are cleaned improper, mixed dust or other impurities or contacted prolonged with light and air in the production process, will make the surface of gold and tungsten gold-plated discoloration even produce rust, but it does not mean that the reason of “rusty” is due to the inadequate purity of gold.

 

After a long storage time, the issues of gold and tungsten gold-plated products that most frequently occurring are including: "rusty" and fade. The so-called "rusty" in fact is the spots of the gold and tungsten gold-plated products’ surfaces, such spots are including white spot and red spot, these problems will reduce the beautiful and ornamental appearance of the gold and tungsten gold-plated products. So how should we properly remove these rust, in order to restore the original color of them?

 

Try not to touch the surface of the gold and tungsten gold-plated products when appreciating them in daily life, so as to avoid the perspiration of our hands or other dusts adhering to the collections’ surface. The white spot is mostly caused due to the cosmetics, laundry detergents or other things which are containing elemental mercury that would be combined with gold and tungsten gold-plated and form the mercury gold compound. For this problem, we can take it to the regular gold shops to have a high temperature treatment then the rust can be removed. The red spot is caused by the adhesion of dust impurity, and has no other treatment processes for a long time in the production process, this kind of rust can be remove by firing in the gold shop.