Boron considerably reduces the thermal expansion of glass, provides good resistance to vibration, high temperatures and thermal shock, and improves its toughness, strength, and durability. It also greatly reduces the viscosity of the glass melt. These features, and others, allow it to form superior glass for many industrial and specialty applications.
The high boron content glasses, borosilicate glasses and specialty glasses are characterized by their strength and resistance to destructive conditions such as elevated temperatures, burning, chemicals, bacterial and fungal attack, and high energy radiation. Borates and their derivatives enter into glass production when used in the production of specialty glass for household, laboratory, optical, heat resistance uses and many others.