All About Glass

All About Glass

This is your resource for exploring various topics in glass: delve deeper with this collection of articles, multimedia, and virtual books all about glass. Content is frequently added to the area, so check back for new items. If you have a topic you'd like to see covered, send us your suggestion. If you have a specific question, Ask a Glass Question at our Rakow Research Library.

A Pressing Solution: Shaped Glass

Glass manufacturers had spent centuries learning how to make flat glass. Now, they wanted to bend it into complex shapes—without marring its surface. Anything that touched the surface of the hot glass could leave a mark. The first curved windows were made by slumping. A glass sheet was placed in a

Pressing into a Mold

While the mechanization of pressing glass into a mold is a 19th-century American development, the basic process was known almost from the beginning of glassmaking. Here the process is shown in its simplest form, using an open-faced mold and molten glass.