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Surface Processing of Frames of Glasses Gilding

July 23, 2014 - PRLog -- What is gilding?

The process of sticking gold alloy on the base metal is called gilding which can be divided into GF and RG.

a. GF (Gold Field)

It refers to products, in which the ratio of the quality of gold alloy to base metal is over 1/20.

b. RG (Rolled Gold Plate)

It refers to products, in which the ratio of the quality of gold alloy to base metal is less than 1/20.


a. with the development of technology, electroplating industry has made huge strides in the manufacturing of frames of glasses.

b. with the employment of the technique of electroplating, the materials of the frame is less consumable and the styles and designs can be diverse in processing the surface of frames. Now the frame can be not only coated with silver, but also with chrome, nickel, copper, titanium glasses (http://www.finestglasses.com/material-titanium.html) and so on.

c. Electroplating process makes it possible for metal frames to be more shinny, corrosion resistant and harder, as well as to be colored and retain metallic luster at the same time.

d. Plated gold can maintain its color and luster for about half to a year. Since gold is very expensive, so the coating of the gold will be thin.

e. Currently after the gold is plated on the surface of the frame by manufacturers, another layer of protective coating is added to maintain the luster and extend the service life.

f. Electroplating usually appears as GP (Gold Plate) and EP (Gold Plate).

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