For 100 years, Corning has developed special glass for use in both chemical and life science laboratories, including PYREX® glass. Made from Type 1, Class A low expansion borosilicate glass, PYREX glassware has become the accepted standard in chemistry labs across the globe.
Unlike common glass, PYREX borosilicate glass is stronger and more scratch resistant. PYREX also resists thermal shock so it can be cooled or heated quickly without breaking and it's more chemically resistant to acids so liquids stay pure and uncontaminated.