Glass Tips from Verrier

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

The usual advice in looking at the reasons for breaks in your pieces must be considered in relation to the process being used.  Breaks durin...

“Can glass be put into dishwashers?” image credit: very.co.uk There are many recommendations to avoid placing fused glass into a dishwashe...

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

Photo credit: Bullseye Glass Co. It is often advocated that there should be a soak at the strain point to even out the temperature throughou...

The visual evidence relating to this enquiry is a sharp-edged break through the middle of the slumped piece. The two parts have slumped se...

Once you have an initial idea of the source of the problem, think about it.   Test it against the evidence.   Is there enough evidence to ma...

A schedule was presented for a slumping problem of a 6mm/0.25” blank.   It consisted of three segments each of a rate of 277C/500F with shor...

  It’s a schedule I always use. This is a frequent statement in response to a firing that has gone wrong. You don't always fuse the ...

  I had a piece crack due to an annealing oops. I put powder on it and put it back in at a higher temp with a much longer anneal time. It lo...

The Identification of stress is important in investigating the causes of stress. We have well established clues to help us with our glass se...