BONUS Firing Schedule Segments
Pink Hold
Does your glass need a pink hold? Pinks are needy like that. Don’t forget to add this segment in.
ADD A PINK HOLD: Use this segment as a replacement for the bubble squeeze segment! Two birds, one stone! Ramp 100*F to 1225*F and hold for 2:00hr.
Need to Expel Binders/Glue?
Need to Expel Moisture?
Need to avoid Bubbles?
ADD A DOUBLE BUBBLE SQUEEZE SEGMENT: Add as segment 3 - Ramp 50*F to 1250*F and hold for :45min. Either hold that bubble squeeze segment longer (segment 2), or add a second bubble squeeze in at a slightly hotter temp!
100 - 1225*F - 45m
50 - 1250*F - 45m
ADD A EXPEL MOISTURE SEGMENT: Ramp AFAP to 200*F and hold for :20min. Add this segment as your first segment with a ramp that’s appropriate for the thickness to your solid glass pieces. It lets any water turn to vapor gently, without boiling (boiling water can disturb powder if your doing a freeze & fuse). You’ll want to vent your kiln about a half inch just during this segment, too.
9999 - 200*F - 20m
ADD A EXPEL BINDERS/GLUE SEGMENT: Ramp AFAP to 450*F and hold for :20min. Add this segment as your first segment with a ramp that’s appropriate for the thickness to your solid glass pieces. You’ll want to vent your kiln about a half inch just during this segment, too.
9999 - 450*F - 20m
High Fire Bubbles or Pot/Mesh Melt Remnant Pillars?
If you are doing a higher than 1525*F firing that may have produced bubbles, or a pot/mesh melt that could leave glass pour remnant pillars, add this segment in to let the extra glass settle or popped bubbles heal. It’ll give you a perfectly flat final look!
ADD A PRE-ANNEAL HOLD SEGMENT: Add a segment before your anneal hold segment - Ramp 9999 to 1490*F and hold for :20min.
9999 - 1490*F - 20m. ← pre-anneal hold
9999 - 900 - hold. ← anneal hold
Texture Yes/No?
Want to pick-up lots of textures? You may want to go a little hotter or a little longer on your processing segment.
Want to avoid textures? Go cooler or shorter hold on that processing segment, my friend.
Does your piece need to level out?
Does your piece need to level out, settle in, squish down, or otherwise compact itself? Give it looots of time. Think about lengthening the hold on your processing segment.
Pay attention to the thickness of the solid pieces!
Adjust your ramp speed going up and coming down to match the thickness of the solid glass. Check the Bullseye Thick Slabs Annealing chart if you’re unsure about a large piece.