I was pouring sterling, some earrings, rings,and pendants. The plaster folks recommendedat least 24 hrs to set and cure out the water content I gave it 72 hrs and they were the light grey specified pre burn. The castable resin people recommended the 13 hr staged burnout. A very gradual heat and also cool down. I was so sure I followed the procedures to the letter. I checked the kiln and temp control appears To be accurate.
Now a wax burnout is a lower temp and shorter duration that required for the resin casts to burn out. I suspect that things would have gone better if I was not using the resin but really dont know. I'm looking for plasters that are specifically designed for the long hot burnout. I guess I was looking for someone who might have some experience With these types of issues and could recommend anything that would get me better results. Was a lot of work to end up in disaster on the last step...
Gonna try again this weekend probably with a less aggressive heat cycle, not confident I'm not wasting more time and materials but to hard headed to quit