Many riders agree that polycarbonate strength is an important benefit, but ask, "What about the clarity of the windshield?" However tough polycarbonate is, it's routinely subjected to surface deterioration from abrasion. Polycarbonate must be hardcoated to be optically clear enough for use as a motorcycle windshield. While some aftermarket companies use acrylic material, other companies use polycarbonate with the FMR hardcoating developed decades ago.
Windshields will scratch and craze from road debris, the environment, UV exposure and simple daily use. That's why manufacturers protect the surface with FMR hardcoating. But National Cycle made a "quantum" improvement in the surface hardness of polycarbonate windshields exposed to years of wear.
