GENERAL KNOWLEDGE

Detailed explanation-1: -Pyrex is a heat-resistant glass. The Corning Glass Works corporation invented Pyrex glass, which is a borosilicate glass. Pyrex also has a low alkali content, which helps it prevent corrosion.

Detailed explanation-2: -Based on their heat resistant qualities, there are two types of glass commonly used for a fireplace or wood stove: tempered glass and ceramic glass. Tempered glass is the less expensive alternative, and is best for lower temperature applications.

Detailed explanation-3: -The Pyrex® glass is unique. It is a borosilicate glass that is tempered, of superior quality and has a great thermal and mechanical shock resistance. It is perfectly adapted to extreme temperatures, from –40° to 300°, and has a high thermal shock resistance that can go up to 220°.

Detailed explanation-4: -Chemically, Pyrex contains borosilicate and expands only about one-third as much as common glass (silicate) when heated. As a result, it is less apt to break when subjected to rapid temperature changes. It is resistant to many chemicals and is an electrical insulator.