PMMA, Polycarbonate and Polystyrene: Material Guide for LED Diffusers and Optical Sheets

A complete technical comparison of PMMA, polycarbonate (PC), and polystyrene (PS) for LED diffusers and optical sheets. Covers optical transmittance, impact resistance, fire ratings, UV stability, thermal behaviour, and application-by-application guidance to help engineers and buyers specify the right material first time.

The Importance of GWFI in Diffusers for Lighting: Safety and Compliance with IEC 60695-2-12

When designing LED lighting, engineers must balance optical performance, thermal stability, and fire safety. One critical indicator for safe material selection is the Glow-Wire Flammability Index (GWFI), a global standard used to evaluate a plastic’s resistance to ignition. At Hexatron, our optical-grade materials are tested and certified to meet IEC 60695-2-12 standards, ensuring both optical […]