Text, Photography, and Diagrams by Bob Leatherbarrow
Most fused glass breaks that occur during firing are the result of thermal shock while the glass is initially heating through the brittle zone between room temperature and about 1000°F. Glass artist Bob Leatherbarrow offers several suggestions for helping glass past get past the brittle zone when fusing glass.
This article was originally published on page 42 of the March/April 2018 issue of Glass Art.