use:

Spray or brush on the surface of the glass lens, and form a protective layer after drying to prevent the glass lens from being scratched due to the use of fixtures or mutual collision during the processing.

Instructions:

Dilute the white glue with diluents such as dimethyl carbonate, ethyl acetate, methyl ethyl ketone or trichloroethylene (diluent: white glue = 8:2), then spray or brush on the surface of the glass lens, and dry or dry naturally After that, subsequent processing can be carried out, and the drying or drying time depends on the thickness of the glue, the temperature and the ventilation. After the lens is processed, the protective layer can be cleaned with the above thinner.

In order to save costs, the diluent and cleaning agent can also be changed to a mixture of dimethyl carbonate, ethyl acetate or butanone and alcohol (95% content) in a ratio of 1:1.