由两片或多片玻璃间夹上一层或多层防火硅夹层复合而成，四周以特制阻燃胶条双道密封，其具有强度高、粘结度大、高透明、稳定性好、耐候性强、防火性好、耐紫外线等优点，属于国标A类防火产品。可制成大尺寸玻璃，但同时会降低其防火性能，因此多用于防火门视窗及防火窗、采光顶、防火地板。A类甲级防火玻璃的完整性、隔热性分别达到90、120、180分钟。

Composite Insulated Fire-Resistant   Glass   is constructed by laminating   two or more glass sheets   with one or multiple fire-resistant silicone interlayers, featuring dual-channel   sealing using   specially engineered flame-retardant   gaskets around the perimeter.   This composite structure delivers exceptional mechanical strength, superior interlayer adhesion, optical clarity, thermal stability, weather resistance, fire performance, and UV durability, fully compliant with China's GB Class A fire-resistant   product   standards. While capable of fabrication in   large panel dimensions (note: increased size may reduce fire ratings), it is primarily utilized in firerated door vision panels, fire-resistant   windows,   skylight glazing   systems,and fire-protective flooring applications. As a Class A Grade 1 fire-resistant glazing   product, it achieves certified endurance durations of 90/120/180 minutes for   integrity/insulation   performance respectively.