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TP(a) Fire Ratings for Prismatic Diffusers: PC and PS Compared

Both Polycarbonate and Polystyrene prismatic diffusers can achieve TP(a) rigid fire classification under UK Building Regulations Approved Document B. See our SGS-certified test results and learn what TP(a) means when specifying UGR<19 lighting for commercial, educational, and public spaces.

LED Diffuser IK Ratings: How PS, PMMA and Polycarbonate Compare

Learn how IK ratings measure LED diffuser durability — and how Polystyrene, PMMA, and Polycarbonate compare across impact resistance, transmittance, and UV stability. A practical guide to specifying vandal-resistant, UGR<19 compliant lighting for any environment.

RoHS, REACH & PFAS-Free LED Diffusers: The Complete Compliance Guide

LED diffusers are at the heart of every luminaire — from office ceiling panels and retail displays to street lights and medical equipment. But not all diffusers are equal when it comes to chemical safety. The materials used — polycarbonate (PC), PMMA, and polystyrene (PS) — often contain additives for UV protection, flame resistance, and […]

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 […]