KMKM Posted June 22, 2021 Report Share Posted June 22, 2021 Hello :) I'm usually a wheelthrower, but I've been making some slab built large plates recently and I'm finding they're slumping dead flat in a Cone 6 firing. They have a gentle curve as I'm drying them in a sling. They're made from a pretty tight mid-fire clay, which I'd prefer not to change because I've made lots of decorating slip for it, and it's lovely when it's fired. I'm wondering if i should be firing them in another bowl covered in kiln wash? Any advice would be much appreciated! Kendall Link to comment Share on other sites More sharing options...
Mark C. Posted June 22, 2021 Report Share Posted June 22, 2021 I fire curved rectangle serving dishes with a small foot added-they like to slump so I put a bigger curve on them. I think a bigger curve will help-also maybe a looser body will help-I have not done this myself but have that other clay body for other larger forms. I'm working with Porcelain Link to comment Share on other sites More sharing options...
Min Posted June 22, 2021 Report Share Posted June 22, 2021 3 hours ago, KMKM said: ...and I'm finding they're slumping dead flat in a Cone 6 firing. They have a gentle curve as I'm drying them in a sling. Just to clarify, you are trying to maintain the curve? If so then yes, firing them in a form will maintain the curve but they obviously can't be glazed on the outside when doing the midfire glaze firing. Other option is to do the bisque firing to midfire glaze firing temperatures then use brushing lowfire glaze and refire to lowfire without the bowl form. Glazing mature clay is a pain and doesn't always work well but the gums in brushing glaze help it work easier than using a dipping glaze. Welcome to the forum. Link to comment Share on other sites More sharing options...
Roberta12 Posted June 22, 2021 Report Share Posted June 22, 2021 1 hour ago, Mark C. said: I fire curved rectangle serving dishes with a small foot added-they like to slump so I put a bigger curve on them. I think a bigger curve will help-also maybe a looser body will help-I have not done this myself but have that other clay body for other larger forms. I did exactly what Mark described a few months ago. With Porcelain. No slumping. Link to comment Share on other sites More sharing options...
KMKM Posted June 23, 2021 Author Report Share Posted June 23, 2021 Thank you all, I'll try the foot first and see how I go. I agree Min, I've found glazing mature work to be a total pain, I'd love to see how they do high bisque, low glaze firings in industry. Thanks for the welcome Link to comment Share on other sites More sharing options...
Recommended Posts
Archived
This topic is now archived and is closed to further replies.