Chemical resistance
Solvents, gasoline and vapours of many chemical substances can damage lens or permanetly destroy it. Optical, mechanical features of lens exposed to chemical aggressive enviroment are reduced. Lens is not providing the same level of impact protection and represent probable danger for user.
NXT after contact with acetone, see acetone test gasoline or exhaust gas keeps optical and mechanical characteristics.
Chemical test – NXT in acetone (video)

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