In order for glass to be used for various applications, commercial glass manufacturers alter the properties and appearance of the material. By adding chemicals, they change colors, prevent bubbles in the glass and alter the hardness of the glass, for instance.
Glass products can be divided into the following categories:
- Packaging standard (bottles, jars)
- Packaging-specific (pharmaceuticals, perfumes)
- Float glass (flat glass, e.g. windowpanes, car windows)
- Optical glass (e.g. lenses, prisms, mirrors)
- Special technical glass