About Glass

Glass Manufacturing

Like treacle, glass is fluid at high temperature and its fluidity decreases as the temperature is reduced.  In other words, its viscosity decreases as the temperature increases.  Unlike water, which turns from a liquid to a solid at a specific temperature, glass has no specific melting or freezing point, but is gradually changed from a stiff solid to a liquid mass as the temperature is increased.  It is this property of “variable viscosity,” which is used in forming a mass of glass into articles of beauty or utility. 

The different methods for forming a variety of different types of glasses either by hand forming, or machine forming, are described in the pages within this section:

​Further information about secondary processes, such as the processes of annealing, toughening, coating and decoration are described in detail on the secondary glass processing page.

For information about the different types of glass produced, please see our types of glass section.

  • British Glass represents the interests of primary glass manufacturers and the glass supply-chain, from raw materials to retail and the end-consumer" credits="n/a" >
  • Learn about the different methods of manufacturing glass in our information section" credits="n/a" >

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RT @Croxsons A striking #bottle of #vino designed to celebrate a Mexican #wine festival https://t.co/GeOFX2dZgO #glass #packaging #wmc htt…

RT @DaedalianGlass A timelapse video filmed yesterday afternoon as Val loads a #fused #glass #design into our kiln ready for firing. htt…

RT @alliedglassUK We are delighted to have won at the UK Packaging Awards this week. Winning with the Deanston 40- Year-Old bottle and rec…

RT @Glass_Int Ardagh Group wins Packaging Company of the Year https://t.co/PF7OP2Uyqh @ArdaghGlass @ArdaghGroup https://t.co/SixjDAFq8d