Developed as a drop-in replacement for traditional methanol-based coatings, PPG's new PPG HI-GARD® Non-Methanol hard coating for 1.5 standard index ophthalmic lenses enables prescription lens makers ...
PITTSBURGH--(BUSINESS WIRE)--PPG (NYSE:PPG) today announced the results of tests carried out in collaboration with HOYA Vision Care to compare the performance of PPG TRIVEX® lens material to ...
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