Why some glasses will break when pouring into boiled water?

Soda lime glass and borosilicate glass contains different materials. The main difference is composition, performance, appearance, density and resistance to cold and heat.

1. Composition is different: The composition of soda lime glass is mainly silicon, sodium and calcium; the composition of borosilicate glass is mainly silicon and boron.
2. Different performance: Generally, many properties of soda-lime glass are not as good as borosilicate glass. The borosilicate glass material is hard and difficult of molding. There are also some molding defects on the product, such as cold grain, material printing and scissors printing etc.
3. The appearance is different: From appearance, borosilicate glass is a little green, soda lime is clearer.
4. The density is different: Generally, the density of borosilicate glass is smaller than that of soda-lime glass, which can be compared by buoyancy density.
5.  Different resistance to cold and heat: borosilicate glass is more resistant to cold and heat shock than soda lime glass (except for tempering glass), borosilicate glass thermal shock is generally between 100 degrees and 200 degrees, soda lime glass (except for tempering) at about 80 degrees, that is, in the winter, when poured into water, the container of soda lime glass (except for tempering glass) may crack, but borosilicate glass will surely not. 
6. Media Contact:

   Ella Tang

   Email: ella@boommachinery.cn

   www.boomingglassware.com