essilor TD2

Scratched lenses have always been a problem with plastic lenses. Even with scratch resistant coatings, plastic lenses are not as scratch resistant as glass. While glass lenses don't scratch easily they are twice as heavy as plastic lenses. This can often cause problems with glasses being uncomfortable.

TD2 Scratch Resistant Coating is tough, durable, and two-sided. The two-sided coating eliminates risk of cracking while effectively performing regardless of the material or design the TD2 is protecting. The use of the nanocomposite technology has improved the scratch resistance of TD2 coated lenses against both light abrasion and deep scratching. The first layer, the adhesion booster, eliminates any microscopic imperfections on the lens surface and allows coating of all materials. The second layer, the hard coat varnish, contains glass like silicate particles in a plastic matrix providing the unique combination of hardness and flexibility.

TD2's anti-scratch lenses are scratch resistant, not scratch proof. No lens is scratch proof. The only material that appears not to scratch are diamonds. TD2 stands for TOUGH, DURABLE AND 2-SIDED.

TD2 is a tedious process and goes through a strict quality control step The lenses are put through a process which applies multiple layers under pressure in a vacuum, which make plastic and polycarbonate lenses far more scratch resistant than without TD2.