The Difference Between Borosilicate Glass And Ordinary Glass

Borosilicate glass has low thermal expansion

Borosilicate glass has a very low coefficient of thermal expansion and is about one-third that of ordinary glass. This reduces the effects caused by stress on temperature gradients and thus has stronger fracture resistance. Due to its very small shape deviation, this makes it an essential material in telescopes, mirrors. It can also be used to process highly radioactive nuclear waste.

Borosilicate glass chipping damage is small

Although it is more resistant to thermal shock than other types of glass, borosilicate glass can still be broken due to rapid or uneven temperature changes. When broken, borosilicate glass cracks tend to be larger than very large pieces rather than crushed. High borosilicate glass has low dispersion (about 65 abbe crown glasses) and a relatively low refractive index (1.51-1.54 for the entire visible range).

Borosilicate glass is mostly used in heat-resistant equipment

High borosilicate glass is mostly used for reflective heat-resistant lamp cups of halogen lamps and electrical equipment that must use heat-resistant glass, such as microwave oven special use glass turntable, microwave oven lampshade, stage lighting reflector cup, drum washing machine observation window, heat-resistant teapot teacup, solar collector tube, etc.