By using specail interlayers, the Fire Resistant Glass have integrity and heat insulation. the performance  is A(EI).  It restricts the spread of flames, smoke and hot gases; it can meet the Class A (EI) 30,60 and 90,120 minutes. It is clear glass and high light transmittance. It has excellent sound reduation properties. the large size up to 2.7m height, the thickness is from 12mm to 75mm.