WarmGlass.com

Ok, thanks and good to know the lower temperature.

Brad,
I refired the bowl to flat and then slumped all at your recommended
schedule and it worked perfect. Thank you for your help.
Carol Ann

It seems the mold hole was not fully clear but I have cleared it out. My husband suggested just slumping again. Thoughts? Schedule?

Thank you Brad for the suggestions. I will try your firing schedule and go from there. Thank you for your advice.
Carol Ann

standing by for reply. anyone around?
carol ann

namaste@sundancer.com

I slumped a beautiful (mostly iridized) 20 inch bowl in a 22 inch pottery mold. It developed a 7 inch diameter bubble near the center. I need a schedule to re slump or to flatten it and re-slump it in order to save it. Here is the flat firing schedule. Ramp 300-1100 degrees, 30 min hold, Ramp 250 -1...

Don, thank you for your help.
Carol Ann

I am using a Bullseye double curved ceramic mold size 17x11. The glass is 5/16” thick. I think the annel should be for 2 or 3 hours T 900 degrees F. 1. 50f to 300f .hold 15 minutes 2. 100f to 800f hold no hold 3. 150 f to 1000F hold 5 minutes 4. 100 F to 1215F hold 10-15 minutes visually check 5. 60...

thanks Kevn,
I will be sure to use the proper screws.

Thanks Barry, I am putting it on a consolidated container. My issue is more in packing the box properly so it doesn’t break. any suggestions in that order.
thanks,
Carol Ann

I have 10 pieces of fused glass approximately 20x30” each to transport by container on ship. I am told they do not handle them with care. I plan to put them in a wooden crate and pack them with foam and bubble wrap. Do you have any experience or recommendations that would be helpful. I certainly wou...

I certainly appreciate everyone's input and help. It has certainly been most valuable to me. I plan to design more of these large pieces so this has been helpful.
Thank you for your time and energy. Carol Ann

Thank you very much for all of your input. It was all very valuable. I appreciate your expertise. According to my assessment the piece did slump fine and the cracks were clean and fresh. I heard the noise in the kiln after the slump cycle. Would you have any advice on changing the temperatures on th...

Thank you Warren and Terry I will take your advice into consideration. I have used this mold several times in the past without any problems but always with 6mm instead of 9mm. Could that make a difference?

Don,
Thank you I will try your schedule. I will be able to flatten and refire.

The mold has no sharp angles. Image jpeg is attached.. I used MR 97 mold release which I have used before with this mold. I have slumped several other pieces of 6 mm that turned out fine. Thank you for your help.
Carol Ann

I am slumping a 9 mm piece of glass 51 inches by 24 inches over a stainless steel mold. it cracked at the annealing stage. it formed around the mold well but cracked in several places. The temperatures I used were 150 degrees to 300 and hold for 15 min. 250 degrees to 800 no hold, 150 degrees to 110...

right!

thanks. I do have a HEPA filter on my vacuum cleaner. I will use that to vacuum up the kiln paper.
Also I will get your recommended respirator. thanks for your recommendations.

So changing gloves and removing them periodically will be helpful. I think more of the problem is the kiln shelf paper. If you use kiln shelf paper, when you remove it, what is your process? I have a large kiln 56"x30", so after the firing when I remove the thin fire paper, the dust partic...