How to judge the quality of gold foil mosaics
1)To make sure if the surface of the gold foil has pocking mark ,water or oil.
2)The protective paint should be bright enough.
3)The high quality of gold foil is without the foil exposed.
4)Do not fall down with pieces when peel off the mesh.
5)Water boiling testing
6)Whether there are paint or other dirt around the glass.
8)Soak the gold foil mosaic in the black cement water.