SUPRA - THE STANDARD IN SCRATCH RESISTANCE
The use of the nanocomposite technology has improved the scratch resistance of Supra coated lenses against both light abrasion and deep scratching.
Because of their surface hardness, derived from the polymerisation of polysiloxane compounds, Supra coated lenses require no special precautions. Nevertheless, cleaning with a tie or scarf etc, and leaving spectacles on a desk lens down or in an excessively hot place, should be avoided.
The Supra coating lenses offers the following benefits:
? High scratch resistance on both sides of the lens.
? An excellent adherence.
? Tintable (before Supra is applied)