Slumping

Breta · Post by **Breta** » Sun Oct 12, 2003 2:50 pm

I am trying out a new mold, stainless steel, 7 inches deep, 12 inch diameter. The glass is 5 thicknesses approx 3/4 inch thick. Any suggestions for firing scheduals?

Marty · Post by **Marty** » Sun Oct 12, 2003 5:50 pm

Slow: no more than 100dph to 1000F, hold for 1 hr, take another hour to get to 1240F and hold there 'til slumped (check visually). Let the kiln cool to 960 (I'm assuming Bullseye) and anneal at 960 for 4 hours. Take 2 hours to get to 700F and hold there for an hour. Cool no faster than 100dph to room temp. Works for me, in my fire brick kiln.

charlie · Post by **charlie** » Mon Oct 13, 2003 5:50 pm

bullseye's schedule for firing deep is

afap 960 90
57 850 0
114 725 0
570 75 0