Pyrex Trademark of Corning Glass for a borosilicate glass resistant to thermal shock
a borosilicate glass with a low coefficient of expansion; used for heat-resistant glassware in cooking and chemistry
A type of glass with a lower coefficient of expansion (also harder) than plate glass. Generally, Pyrex is colorless, though it can range from gray to straw-colored. Back to top of glossary Back to top of glossary
A kind of glass that is heat and chemical resistant. It can be autoclaved. It is used in large gauge jewelry, such as plugs.
A Trade Name for a glass having a low coefficient of expansion due to high silica content.
The brand name for a class of borosilicate glasses developed by Corning Laboratories.
Pyrex is a brand name of borosilicate glass introduced by Corning Glass Works in 1915. Though borosilicates had been produced before, the name Pyrex is widely used as a synonym for the material. Corning spun off its kitchenware division in 1998 as World Kitchen, Inc.
