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Ginny C

Member Since 02 Apr 2010
Offline Last Active Jun 24 2016 09:25 AM
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Posts I've Made

In Topic: Glazing Mugs With A Different Glaze On The Handle

23 June 2016 - 02:16 PM

Thanks, Matthew. But surely the unglazed porcelain would absorb stains during use? Of course, it's so beautiful that maybe his work mainly sits on shelves to be admired...  Or maybe I just don't know enough about porcelain. Would love to try it when I get better as a potter!

ginny


In Topic: Glazing Mugs With A Different Glaze On The Handle

18 June 2016 - 08:30 PM

Lin, I think that's probably right.  Maybe he dips the whole bisqued mug in a white glaze and then waxes the handle, rim and foot. Lots of work, but he is extremely careful in his making and attaching the handles, so that would not be surprising.

ginny


In Topic: Large Platter Broke In Half In Bisque Firing. Anything To Do With It?

30 April 2016 - 07:55 PM

OH!  Just make little balls of clay and put them underneath?!  What fun!  How far apart...I'm guessing about 1 inch apart...so 8-10 for a platter with about 4-5 inches diameter  flat area on the bottom?

ginny

( I love the interest in this, and the advanced scientific discussion some of you have brought into it!)


In Topic: Large Platter Broke In Half In Bisque Firing. Anything To Do With It?

30 April 2016 - 07:42 PM

 

I set it for cone 5 (but when I use a witness cone it shows cone 6 was reached) and I usually choose slow or medium speed, but this time I used Fast...maybe that was the problem!!?? 

 

 

Are you saying you fast-fired to ^5 for a bisque firing?  Or do you mean to ^05?

 

If you fast-fired to ^5 from greenware I'm not surprised it cracked.

 

Chilly,  Oh good grief. Sorry !  I was just talking about my glaze firings there..and the fact that the kiln slightly overheats.  The bisque firing under discussion here was to cone 04!  Sorry for the confusion.

ginny


In Topic: Large Platter Broke In Half In Bisque Firing. Anything To Do With It?

30 April 2016 - 10:25 AM

Chris, Yes, it's sharp! Would take a lot of grinding to not look like just a broken piece! And, Babs...maybe a garden piece is a good idea. :D

Nerd & Chris, thank you for all that explanation!  I've never tried to use my kiln without just the built-in settings. It's an Excel with a Select Fire board.  I set it for cone 5 (but when I use a witness cone it shows cone 6 was reached) and I usually choose slow or medium speed, but this time I used Fast...maybe that was the problem!!?? 

 

It looks like about 6 inches of the platter rested on the shelf. (No foot ring on this piece.)

 

I will order silica for future attempts. Please tell me which kind to get, as I see 4 different kinds or particle sizes on Bailey's website: silica sand or silica flint (200, 325, or 400 mesh). Since I use pre-mixed glazes, I've never ordered any of the ingredients.

 

I'm about to load another bisque batch. Guess I'll set it for slow! No platters, but one large utensil jar, which I'll prop on stilts.

Thanks!

ginny