Is the acrylic glass hardened and has a small surface?

Is the acrylic glass hardened and has a small surface?
Acrylic glass lenses are usually hardened. Some look very clean during the cleaning stage, but after the hardening solution is processed, there are many small pits. Why? Evergreen Chemical has extensive experience in cleaning before hardening. After research, generally there are two possibilities: The first one: the front cleaning did not clean the oil on the glass surface, not thorough. In the place where there is oil point, the hardening liquid can not be covered, so a small defect is formed. The second type is also about the front cleaning, the washing after washing is poor, no rinsing is thorough, the cleaning liquid remains on the lens, and the residual place is The hardening fluid is separated and uncovered. In short, the problem is that the optical glass cleaner formulation used for cleaning is not good. Therefore, after research. Evergreen Peak has developed an optical glass cleaner for the characteristics of pre-hardening cleaning and has proven its reliability in a large number of practical applications!