Hot Sale Mouth Blown borosilicate glass double wall glass cup
your favorite beverage. With its double layer of borosilicate glass it appears as though the liquid is 'floating' within the glass. They will not sweat when filled with a cold beverage, so you will not have to use a coaster.
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, lighter glass. Borosilicate glass doesn't need to be as thick as traditional glass to be just as strong due to the bonding capability boron oxide. Borosilicate is simply a different type of glass that is resistant to temperature swings and scratching. Because the particles are held together so tightly, borosilicate glass is resistant to temperature swings, In addition to being ishwasher safe borosilicate will not become cloudy over time; you can rest assured that after 1,000 cycles, the glass will be as clear as the day you bought it.