Tips and precautions of applying on gold foil | Kinnogold.com
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...