Fireproof glass, also known as fire-resistant glass or fire-rated glass, is a specialized type of glass designed to withstand high temperatures and prevent the spread of fire, smoke, and heat. It is made by adding special materials to the glass during the manufacturing process that enable it to resist thermal shock and maintain its integrity when exposed to high temperatures.

Fireproof glass is used in buildings to create fire-resistant barriers, such as fire doors, fire-rated windows, and glass partitions, to help prevent the spread of fire and smoke in case of a fire. It is also used in high-risk facilities, such as chemical plants and laboratories, to protect workers and prevent damage to equipment in case of fire.

The fire resistance of fireproof glass is usually measured in minutes, such as 30 minutes, 60 minutes, or 120 minutes. The length of time for which the glass can withstand heat depends on the specific type of fireproof glass and the level of fire resistance required for the particular application.