The copper-free mirror is to replace the copper protective film with a passivating agent protective film, which is both environmentally friendly and extends the use period. Copper-free mirrors are also called environmentally friendly mirrors.
The glass frosting process is a soaking process. After mixing the frosting powder with water and acid to make a solution, clean the glass sample that needs frosting and put it into a soak for a certain period of time, then wash and dry it.
