About Borosilicate Glass

All Our products are made of Borosilicate Glass. This is a lead-free glass. Let's take a look at this material.

Invention of borosilicate glass is generally credited to Otto Schott, a German glassmaker who worked in the 19th century. By the late 1800s, the process for making it had been refined, and in 1915, a famous line of borosilicate kitchen products was released under the Pyrex label. Because it is stronger and more durable than conventional glass, it has a number of far reaching uses.

Borosilicate glass is a type of glass that includes at least 5% boric oxide. The boric oxide makes the glass resistant to extreme temperatures, and also improves its resistance to chemical corrosion. This glass is widely used to make glass for kitchens as well. The cups made of borosilicate glass can withstand a wider range of thermal strain than soda glass equipment of the same thickness

Borosilicate glass can handle both extreme heat and cold, making it very popular for laboratory glassware and other scientific instruments.The glass is also resistant to chemical corrosion, which can be extremely useful for experiments and chemical storage.

As a general rule, borosilicate is commonly used in Blown Glass blowing forms, products made with it will be more expensive than those made with ordinary glass, because these products require greater heat and more labor to produce.

Borosilicate glass has several advantages over soda glass. It is less prone to chemical attack, and the coefficient of expansion is lower, so that it is more resistant to thermal shock. When a piece of glass is heated on one side only, local expansion takes place, and because the rate of heat transfer through the glass is low, a steep temperature gradient is set up, which produces a corresponding tensile stress. This can cause breakage, because although glass is strong under compression, it is much weaker under tension: borosilicate glass can therefore better tolerate uneven heating, so that thicker and hence mechanically stronger vessels can withstand the same degree of thermal shock as thinner soda glass. Alternatively apparatus made of borosilicate glass can withstand a wider range of thermal strain than soda glass equipment of the same thickness.