Our Materials

Materials We Use

The majority of glass characteristics, including hardness and color, are a result of metallic oxides, while "boro" in borosilicate refers to boron. Our products, which are made from Pyrex 7740, Schott Duran, Kimax KG-33, or Kavalier Simax, are all functionally equivalent and composed of borosilicate glass. Borosilicate glass has long been favored by research and industry due to its exceptional resistance to acids, salt solutions, and organic substances, as well as its low thermal expansion and high surface strength. The glass's low thermal expansion permits us to heat it locally to form intricate glass apparatuses without fear of breakage. Furthermore, it can be safely heated and cooled without sustaining damage. These borosilicate glasses have a linear coefficient of expansion of 32.7 x 10-7 cm/cm/deg. C, while other borosilicates with higher expansions are used for specific applications such as vials and syringes.

Raw Material

The majority of the materials we use are in the form of glass tubing or shaped as "blanks," such as round bottom and erlenmeyer flasks, carboys, media bottles, and more. These raw materials undergo modification and transformation, most frequently by heating, using specialized glassblowing lathes. Our website displays a variety of tubing end finishes, such as firepolishing, lapping, and tooling to specific form configurations, to provide some simple examples.