Glass Tips from Verrier

Testing for stress is one of the most important elements in kilnforming.  It may not look like there is stress when there is considerable am...

Will stress still show with polarised filters on cracked and broken glass? It's not a straightforward answer. I was looking at some ...

  This is a description of the analysis process to determine the possible causes of a split during a slump.       Credit: Maureen Nolan Ob...

Polarised light filters are used to detect stress in a non-destructive testing method in kilnforming.   The use of the filters is described ...