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Article Ref
3469-WAHX-5341
Written By
Administrator
Date Created
Mon, 2nd Jul 2007
Updated By
Wallace Rogers
Date Modified
Tue, 20th Dec 2016
 
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   What does hard glass and soft glass mean?

Question 

What does hard glass and soft glass mean?

Answer 

 
“Hard-glass” is an acronym for borosilicate glass, like Pyrex or Kimax. “Soft-glass” is an acronym for soda-lime glass, or a higher expansion type glass, (88-92 COE). Lab glass is generally made from “hard-glass”, (borosilicate). Bottles are generally made from “soft-glass,” or soda-lime glass.