The surface of TR90 spectacle Small Frame Glasses is lubricated, with a density of 1.14-1.15. It will float when placed in salt water. It is lighter than other plastic spectacle frames, about half the weight of plate Tortoiseshell Glasses Frames and 85% of nylon material. It can reduce the burden of nose bridge and ears, and is suitable for teenagers. It is very wear-resistant, good chemical resistance, solvent resistance, good weather resistance, not easy to burn and high temperature resistance. Moreover, it is a memory polymer material with a deformation resistance index of 620kg / cm2 and is not easy to change. Because the glasses Clear Frame Glasses of TR90 material has large elasticity, strong toughness, not easy to fracture, high strength and no fracture, it has sports safety. Moreover, it is very impact resistant: more than twice that of nylon material. Iso180 / IC: > 125kg / m2 elasticity, so as to effectively prevent eye damage caused by impact in sports.
The plate can be worn for one or two years, and the general wearing life of TR Glasses Frames is half a year to one year, which is easy to peel off.
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