Sunday, August 1, 2010

The case of the hopping glaze

We did a firing in the gas kiln at the studio this past week. It was a real humdinger - lots of outstanding color was achieved, as you can see by these gorgeous tumblers above. This trio show the three main glaze combinations that I have been working with for the past three or four firings. They have been pretty consistent until this last firing when strange things happened and there were some casualties. I'm pretty bummed about it, especially since this work is a collaboration and I am the one responsible for the glazing and making sure they do NOT get stuck to the kiln shelves... dang.

This tumbler came out so freaking gorgeous that I was forced to keep it. I really didn't have a choice in the matter. I'm drinking my seltzer out of it right now. :)

I also had to keep this one.
Again, I was helpless. It had to be done.

There were lots of little bowls in this batch. It's almost a shame to put anything in them when the inside is so lovely.

See those pretty purple dots? I like to call them "little bastards." This is a fairly new glaze that I have been testing for a while now and thus far it had been very, very reliable and consistent. It didn't move, it didn't drip, it didn't crawl - it seemed like a dream glaze, especially for my purposes. In this firing, however, the little bastards decided to pick up camp and relocate themselves toward the bottom of the pots causing some (thankfully not all) to become one with the kiln shelves. This pile shown above came out just fine but you can see how far the dots moved - I placed them at the rim of the bowls, right at the top, but they ended up half way down. The really strange thing is that they didn't run or drip, they didn't crawl and leave a bare spot on the pot - there is no indication that they were ever placed at the rim of the bowl in the first place. This is weird and has me totally perplexed. If any potters out there have any insights into The Case of the Hopping Glaze please enlighten me so that I can prevent it from happening again. :)

15 comments:

Davinia said...

I'm sorry I have no knowledge of glazing and firing but your little 'bastards' look amazing. The pots are beautiful as are the tumblers.

Katie said...

I agree with Davinia...Everything looks great to me...I wonder how "awful" the cast-offs really turned out...

Spirited Earth said...

are the LB's a more matt glaze than what is underneath?
perhaps the pieces may have been place in the kiln's hot spot and the base glaze moved, if the LB's were of a drier glaze then they just rode the base down the pot, if the hot spot was not hot enough to flux the Lb's, this is just a rough guess without more info..

Spirited Earth said...

forgot to ask..are the LB's emily purple recipe? lot's of tin?

Marie Cramp said...

They turned out fabulous!! If ever you make another tumbler like the top one, I would love to purchase it!! Those are by far MY colours!! :) Great job! sorry about the casualties.

Lorelei said...

dude, LET THEM GO! and you can ship em right over here to hartford terrace! :) GORGEOUS!
I just got my ring, and it's on my finger, totally comfy and perfect. I love it. oh so much. words cannot describe!! you are so awesome. I don't have to tell you that though. you know it. work it baby work it!

sundownbeaddesigns said...

They are all so gorgeous! I can't get over the fabulous colors.

noricum said...

How bizarre! The purple spots are *very* pretty, though.

Was there a different glaze under the spots? Perhaps it melted first, before the purple spots had a chance to melt, causing the solid spots to slide over the underglaze?

When can we expect to see these in your shop? (*nudge*, *nudge*)

Emerald Window said...

They may be little bastards, but they are beautiful bastards nonetheless. I don't blame you for keeping a couple of the tumblers. Those were stunning.
Cenya

gbkoru said...

Amazing colors, very pretty!

eve said...

i love them all, the colours and patterns are just divine,x

mairedodd said...

these are beautiful... i am so intrigued by ceramics and glazes - you want things that are consistent yet it can be the surprises that you love... that is strange about the dots - and no elves i have ever read about can withstand that kind of heat to do mischief... hope you get an answer...

Katie said...

And I'm with everyone else - I would LOVE to buy some of the wonderful goodies that you're working on glazing....LOVE beads and pendants, but cups and bowls and stuff like that are cool, too!!

Metallo Bianco Jewelry said...

I LOVE the purple dot bowls!!!

Andrew Thornton said...

I have much desire in my heart for these vessels. They are amazing! I have been wanting one ever since you first posted pictures of your collaboration and your love of glazing. Did I say that I have covetousness in my heart??? For some, that's a mortal sin. Why you got to make me mortally sin?