Goody, goody ! It's time
to put the bead in the Kiln to ANNEAL
- A very important part of beadmaking
!
The kiln does two crucial things. One,
it holds the beads at a constant temperature
around 940 degrees (thanks to my digital
controller ! ) while I'm working,then
it cools down the beads slowly.
This is part of the process
called ANNEALING. It allows the molecular
bonds which broke apart when the solid
glass became molten (liquid), to reform
slowly and completely. If glass is not
annealed properly, it will often develop
cracks due to "stress" in the
glass.
The second part of the
annealing process is cooling the glass
down slowly, at a precise rate, so that
no cracks develop in the glass. This usually
takes five or six hours. When a glass
bead has been properly annealed, it is
pretty durable and should still be around
when future archeologists dig up our remains
!