Glass Tips from Verrier

Why is the stress not relieved after the strain point when slumping? The answer relates to whether it is on the cool or on the heat up. Co...

  Shotgun annealing is chosen when the annealing temperature is unknown or uncertain. The name comes from the characteristic spread of the ...

  It has been suggested that there are different annealing temperatures for different colour groups. This is not so. All the colours in a...