Glasspainting at last! and really enjoying it.
I started with the three seagulls and then couldn’t stop! I moved on to Mary’s sandal and the head of Joseph, because they were lying on my lightbox after their trip to Bill the sandblaster & glass sculptor.
In England I used hydrofluoric acid to remove the flash, but here in Vermont I sandblast and fire-polish instead. It’s safer. Fire-polishing is making the glass hot enough to smooth out the rough surface of the sandblasting but not so hot that it melts into a puddle. Hitting the right temperature is pretty crucial!
Here are the sandblasted pieces with all their masks removed (above),in the kiln, and back in their spots on the easel, fire-polished (below). The body of the flash is a furiously bright green that I will tone down with silver nitrate (aka ‘silver stain’ – the only real ‘stain’ used in traditional stained glass).
Also in the kiln are two heads and the sandal, plus a couple of test pieces that Sam prepared to experiment with herself.