Gpw
-
Posts
10 -
Joined
-
Last visited
Gpw's Achievements
Member (2/3)
2
Reputation
-
Hulk reacted to a post in a topic:
Strange blow outs during bisque fire
-
Thanks. I will take more care to avoid pockets when adding more clay. Happy throwing to you all during this new year.
-
These were with some other very large forms and I was trying to be over cautious.
-
Hulk reacted to a post in a topic:
Strange blow outs during bisque fire
-
Preheated for 12 hours and slow fire digital. Air dried for several weeks, I had another bowl that had the same kind of defect. The thickness is consistent from bottom through the walls about the thickness of a pencil. No one who has posted seems to have had this experience. Just the expected defects from wet bottoms, too fast firing, The second bowl had almost a perfect circle blow out but half way between the bottom and rim. I guess it is a ‘who knows’ just a fluke. I was hoping for an answer that was more specific to this kind of event so it won’t be a future risk. All in all thanks to everyone for all the information.
-
No relation to spy hole. Yes it is glazed. It was glazed after the blow out.
-
No relation to spy hole. Yes it is glazed.
-
This is on the side. Specific details are in the very first post. Thanks.
-
Are your blow outs on the sides of your work? These are not in the bottom like those that happen when water is left sitting in the bottom. Thanks
-
Are your blow outs on the sides of your work? These are not in the bottom like those that happen when water is left sitting in the bottom. Thanks
-
Are your blow outs on the sides of your work? These are not in the bottom like those that happen when water is left sitting in the bottom. Thanks working on loading pics. Blowout was on the side only, not a spiral or blow out on the bottom. Been throwing for 35 years and never seen this before. Thanks
-
Recently I have had two strange blow outs during a bisque firing. These pieces were large wheel thrown bowls ( approx. 20 wide and 9 tall) fired at cone 04 digital with a preheat of 8 hours. The "defect" was a circular blow out of about 2 inches in diameter and pretty much a perfect circle. The blowout did not go completely into the piece. There were no other signs of cracks or defects. Since this defect has occured twice, I need to find out what I am doing incorrectly so that I can prevent reoccurance. Thanks.
