For the first time I have fused two disks into a blank to slump into a mold (opaline over tomato red, both discs the same size, will use mold 8943).
Have a couple of queries, to try and improve things for future fusings, as I intend to use this mold quite a bit.
Good part: The blank looks nice, with well rounded edges. Got champagne bubbles.
Bad parts: had some brick rain onto it (we will fix this), so had to sandblast the opaline to clean it. Also fused the blank onto fiber paper rubbed with alumina hydrate, but could see some tiny white spots after soaking the blank in vinegar and brushing vigorously, so sandblasted the back as well. Used 180 grit AO to sandblast.
My query for this blank:
Will it firepolish to a full gloss when I slump, or do I have to do a separate polishing firing?
Intended slumping schedule is:
150/hr to 500, hold 30
250/h to 1260, hold 20
Brick kiln with top elements plus side elements below the shelf (I find in my kiln this gives more even heating than using the top elements only)
Query for future blanks:
- Should I fuse on thin fire instead of fiber paper? Or directly on the kilnwashed shelf? Used the FP thinking that it might avoid any bubbles building up between the shelf and the glass.
- Would like to further reduce the champagne bubbles, this was the schedule, can I change anything?
270F/h to 1148, hold 1 hour
235F/h to 1454. Had programmed a hold of 25', but the fuse was ready when it reached 1454.
Also, would you know which colors were used on the BE sample bowls?
Many thanks for your help, it is really exciting to start using BE colored glasses on projects beyond jewelry.
Best regards, myvalley