Well we lost a whole load of work.
The whole thing... (Who says electric is trouble free?) Nothing but shards now.
The cone 5 Laguna Cassius Clay bloated horribly. We have a few ideas why it might have thumbed its nose at us, but we're totally curios if anyone has any solutions.
Common occurrence with Cassius fired to ^5. No bloat when fired at ^3-4. I fire to ^5, sometimes it bloats, others it does not. Smooth surfaces it happens more than fissured
ReplyDeleteThanks. I'm hearing everyone say this body is problematic. Any clues help.
ReplyDeletefire to cone 4 and slowly, I used 12 hour fire for these andcone 3 & 4 with flat:
ReplyDeletehttp://bluestarrgallery.blogspot.com/2012/04/black-is-beautiful.html
once fired tests on tiles:
http://bluestarrgallery.blogspot.com/2011/10/copper-silver-and-gold.html
Definitely the pits. I hope all you potters who use this body have complained. If it's listed as ^5; it should fire to same with no problems.
ReplyDeleteshould be cones were flat
ReplyDeleteUse it frequently at ^5 with a 15min hold at medium speed. This came out without bloat, even on the smooth areas.
ReplyDeletehttps://flic.kr/p/niBupJ
Sorry to hear you had this problem. When I had issues with bloating for Laguna Dark Brown clay ( ^10) I did some online research and found that it is recommended that you bisque longer to ensure you burn out all the organic material. The cause of the bloating actually is the incomplete removal of this organic material at the bisque stage that the results in trapped gasses at the glaze firing stage.
ReplyDeleteYou can read more about this here:
http://www.lagunaclay.com/support/bloating-and-blackcoring.php
Overfired.
ReplyDelete