Due to the numerous "tunnel" shaped micropores and high melting point inside the gas phase silica,
 the fireproof glass adhesive layer begins to foam and expand when heated (with a foam expansion ratio of up to 10 times),
absorbing the high heat brought by flame combustion and forming an opaque fireproof adhesive board.
It has strong hardness and can effectively isolate the spread of flames, smoke, and toxic gases,
as well as absorb the heat brought by flame combustion, thus playing a role in insulation.