Maintaining surface integrity is essential for long-term visual clarity and product lifespan. This feature ensures that eyewear lenses can withstand the abrasive forces of daily cleaning and accidental contact, providing a benchmark for high-performance functionality.
The Science of Surface Hardness
In the eyewear industry, scratch resistance is the measure of a lens's ability to resist permanent surface damage from harder materials. Most modern high-performance lenses are made from lightweight polymers, which are naturally softer than glass. To achieve durability, a specialized "Hard Coat" (HC) is applied to both the front and back surfaces of the lens. This coating is typically a lacquer infused with microscopic silica or ceramic particles that create a toughened, glass-like shield. This performance ensures that the lens stays clear even after repeated wiping with cloths or being placed on rough surfaces, preventing the "haze" of tiny scratches that can cause glare and blur over time.
Validation through the High Performance Mark
By meeting selected technical benchmarks, your eyewear products become eligible for the Intertek High Performance (HP) Mark’s Scratch-Resistant. We apply ISO 8980-5, with the number of rub cycles increased to 38. There must be no visible signs of abrasion after the test.
This mark serves as a ‘proof of performance’ by validating that your product meets the High-Performance Mark standards. You can display the mark on product tags, brochures, packaging, websites, and in both online and offline stores across multiple channels, confidently signal to consumers that the performance claims of your products are verified.
