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  The difference Pure gold foil  is made of real gold hammered into thin slices. Due to the different materials, the gold content of pure gold foil is basically 98%-99%, and there are also 92%, 74% gold content, etc.; gold foil is resistant to oxidation, moisture and mildew, and never changes color. Taiwan gold foil  is actually imitated gold foil. It does not contain real gold. It is mostly synthetic material. It is not fragile, low cost, more stable, more durable, and has a lot of colors. Therefore, you have to ask about the gold content when buying products. Pure gold leaf has a natural metallic luster. Compared with pure gold leaf, Taiwan gold leaf is more shiny and harder. It can also be held in a flat state with bamboo clips. The thickness of real gold foil paper is much thinner than that of Taiwan gold foil. Pure gold foil is as thin as a cicada's wings, so you have to be careful when you knead it with your hands. It will turn into a powder. Taiwan gold foil is not...

  1.   Gold foil   will turn black after oxidation Pure gold foil is not easy to appear oxidation blackening phenomenon. The phenomenon of oxidation blackening is  imitation gold foil , which is common copper foil. The properties of copper foil are unstable, and it is easy to oxidize and blacken in high temperature and high humidity environment. Therefore, how to delay the oxidation of copper foil and increase its life is the most important thing. First of all, before sticking the copper foil, the bottom blank must be completely dry, and the sealing primer should be thick enough. Secondly, after the copper foil is pasted, the gold foil protective paint should be applied immediately, which is very reasonable for increasing the service life of the copper foil. 2. The gilding effect is not smooth enough For example, it is not smooth enough to touch. There are two main reasons for this phenomenon: (1) the base slab or primer at the gilding position is not in place, the b...