Structural integrity is essential for long-term eyewear reliability. This feature ensures that the frames of glasses can withstand the physical stresses of daily use—such as bending, dropping, and constant handling—providing a benchmark for high-performance functionality.
The Science of Structural Resilience
In the eyewear industry, frame durability is the measure of a material's ability to resist snapping, deforming, or losing its shape under pressure. Whether made from specialized acetates, high-grade metals, or flexible memory plastics like TR-90, a durable frame must handle the repeated mechanical stress of being put on and taken off. This performance is achieved through precision engineering of the bridge and temples, as well as the use of high-quality hinge mechanisms. A durable frame ensures that the eyewear maintains its alignment and comfortable fit over time, preventing the lenses from becoming unseated or the frame from becoming brittle and prone to breaking.
Validation through the High Performance Mark
By meeting selected technical benchmarks, your eyewear products become eligible for the Intertek High Performance (HP) Mark’s Durable Frame. We test samples to EN ISO 12870 clauses 4.8.3 and 8.5, but with an increased number of test cycles up to 750.
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.
