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Hosted October 26–29, 2020 at the Greater Columbus Convention Center, the 81st Conference on Glass Problems (GPC) is the largest glass manufacturing conference in North America, attracting glass manufacturers and suppliers worldwide to exchange innovations and solutions. The Glass Manufacturing Industry Council (GMIC), in partnership with Alfred University, co-organize the conference. The GPC is devoted to the technical issues facing professionals responsible for the successful operations of glass manufacturing companies and features two full days of invited and contributed talks.

GPC continues to grow each year—in fact, the 2019 conference boasted an attendance of nearly 600. The symposium alone drew in 88 attendees, the largest attendance in history.

Broad topics of interest are:

  • Glass melting & quality
  • Combustion and heat transfer
  • Refractories
  • Process control, sensors, and Industry 4.0
  • Modeling of glass melting and processing
  • Raw materials, batching, cullet and recycling
  • Forming issues and container customization
  • Safety, emissions, environment, and respirable silica
  • Carbon reduction, energy management, and electric boosting
  • Furnace design and reconstruction
  • Furnace life extension and maintenance
  • New topics (relevant to glass manufacturing)

Check back soon for the 81st GPC schedule of events.

An overview of the Glass Problems Conference provided by Conference Director Bob Lipetz

Keep up to date on all the details for the 81st Conference on Glass Problems by signing up for updates.


If you’re interested in reserving an exhibit booth or a hospitality booth or salon, contact Mona Thiel ([email protected])

The 81st Conference on Glass Problems is organized by the Glass Manufacturing Industry Council and Alfred University. It is endorsed by The American Ceramic Society. Glass Worldwide is the official journal. 

Where glass manufacturers & suppliers meet

Visit the 80th, 79th, 78th,  77th76th75th GPC, 74th, or 73rd GPC program guides for information on previous events.