... clarity, high resolution, high light transmission ratio.Durable, scratch-resistant glass surface, work in order even scratched.Good ... alcohol, methyl alcohol, ethyl acetate, ammonia-based glass cleaners, gasoline, kerosene, vinegar.Electrostatic ProtectionPer EN 61000 ... 13.IP64 standardsDurabilitySurface DurabilitySurface durability is that of glass. Mohs’ hardness rating of 7Expected LifeNo known ...