Hand Blown from Borosilicate Glass Borosilicate glass is a strong heat-resistant glass traditionally used to make scientific lab glass. Stronger than traditional "soda-lime" glass, borosilicate can be used for everything from drink ware to cookware. Borosilicate glass substitutes boron oxide in place of the soda and lime used in everyday glassware. The boron oxide acts as the glue holding the silicate together. Due to small size of boron particles, the glass is held together tighter, resulting in a stronger.
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