•    Classification of Fire-resistance glass

•     Composite fire-resistance glass(FFB)

•       lt   is   kind   of special   glass,compounded   by two   or more   pieces of glass or by one piece of glass and organic materials to

•       meet different fire-resistance levels.

•     Single Fire-resistance glass(DFB)

•       lt is kind of single transparent glass that has integrity of fire-resistance and can prevent flame and smoke from spreading.

•     Classification of Fire-resistance glass

•       Type A has the property of fire integrity,fire-resistance and heat shielding. Typb B can meet the requirement of fire integrity and heat radiation intensity. Typb C can meet the requirement of fire integrity.

•       Each of the three types can be divided   into four levels by fire-resistance property-Band   Ⅰ ,Band   Ⅱ ,Band Ⅲ and Band Ⅳ .

•    Fire-resistance glass

1.      lt can keep fire integrity within refractory period of   time.lt can stop flame,smoke and high temperature   poisonous gases

•       from spreading.lt   has a good permeability.

2.lt has a high   intensity,6   to   12 times   of that of common float glass of the same thickness,and   1.5   to 3 times   of that of

•       tempered glass.

3.     lt can be deep processed in various ways.lt can be processed into insulated fire-resistance glass,laminated fire- resistance glass and coated fire-resistance glass,etc.

•       4.lt is heat resistant,cold resistant,moist resistant,light resistant and non-

discolored. 5.lt is light and easy to be transported and installed.

•     Principles of fire-resistance

•       Affer the special treatment   on common glass   by physical and chemical ways to improve thermal shock resistance.lt can guaranteed not to break under flame shock and high temperature within 45 to 90 minutes,so that it can stop flame from entering rooms through windows.People   have enough time to leave the scene of fire.The two sides of single fire- resistance glass   have   the same fire-resistance   effect.lt   can   increase   the   intensity,wind   pressure   resistance   and   safety when used for.