Robax & Firelite 5 are ceramic-mix glasses with a slight brown colour tint inherent in their construction. These products are widely used for 120/0 fire doors, and inspection panels into high temperature equipment. They can be cut and processed similar to ordinary sodalime glass and will remain in their annealed state. Firelite 5 can be laminated to a standard sodalime glass to create a safety rated panel where required. Clear safety films can be applied to the fire-risk side of Robax and Firelite 5 to meet with Document K requirements.