SCM Cool and Hanna's Blue Ash over Coyote Clay Aqua over black underglaze

Not crazy about this one. Probably didn't put enough SCM and Hanna's Blue Ash on it. This is on Continental mid-fire white stoneware.

SCM Cool and Hanna's Blue Ash over Water Blue (Revision 1 from Pottery Making Illustrated) over black underglaze

The best of the lot. This is on Continental Super White.

This one is also pretty good. Also on Continental Super White.

This one had quite a few pinholes and craters inside and out. It's on Continental Mid-fire White Stoneware I'll probably try to re-fire.

SCM Cool cups

SCM Cool, Water Color Blue, Hanna's Blue Ash, Jenn's Juicy Fruit on Continental Clay Super White.

SCM Cool craters

This is what happens to me a lot when using SCM over white stoneware (Continental mid-fire white in this case). The poured Mayco Green Tea was just as bad on these cups. Maybe someday I'll learn my lesson.

SCM Cool and Water Blue

The outside is SCM with Hanna's Blue Ash, Water Color Blue, and Jenn's Juicy Fruit. The inside is Water Blue Revision 1  (from Pottery Making Illustrated July/August 2013). These are Continental Clay Super White.

Latest commission

Just some plates - Cone 5 3/4 with commercial glazes.

These plates caused me an inordinate amount of anxiety because first the plates all rolled up a little bit during the bisque firing so they wobbled a lot. Fortunately they flattened back out during glaze firing. Also, I'd never used the Spectrum glazes (Bright Orange and Lime Green) before, but they worked well.

Why the pink?

Two mugs. Different firing, but using the same schedule. The dry glazes are from the same batch, but they were mixed (with water) at different times. The mug on the left was sprayed the day after mixing. The mug on the right was sprayed several weeks after mixing.

The glazes are SCM Cool, Hanna's Blue Ash, Water Color Blue, Jenn's Juicy Fruit. Mayco Green Tea Inside and over the lip.

Here's another cup from the firing with a little more of the blue glaze.

Doesn't seem like it was the firing. This vase was sprayed at the same time as the mug on the right, but it was fired at the same time as the mug on the left and it looks like the mug on the right.

..

Some experiments

These are all commercial glazes with SCM over the "Celadon".

Some pots by Clare

These are by my 4 1/2 year old daughter Clare. She threw both cups, made the handle, made and attached the "buttons" on the cup and brushed the red glaze. I helped with the lines on the cup, attached the handle on the mug, and did the other glazes.

Just a plate

Cone 6. Strontium Crystal Magic - Cool with Water Color Blue sponged on and Hannah's Blue Ash and Jen's Juicy Fruit (with iron) sprayed over the top. This is from the same spraying and firing as the previous posts, but it's made out of a red clay.

Strontium Crystal Magic - Cool Stoneware vs Porcelain

Two bowls. Identical glaze on the outside (liner is different). White stoneware is on the left. Porcelain on the right...

These are SCM Cool with Hannah's Blue Ash, Water Color Blue, and Jen's Juicy Fruit (with iron) over.

The stoneware bowls fared better than the stoneware mugs with SCM. I only lost one bowl due to bad pitting/cratering.

Strontium Crystal Magic - Cool

Porcelain mugs

Finally got enough pots to do another firing. This time it was cone 6 with "Strontium Crystal Magic - Cool" (unmodified) from the recipes on the Steven Hill DVD. The other glazes are Hannah's Blue Ash, Water Color Blue, and Jen's Juicy Fruit (with iron) sprayed lightly over everything else. The liners are Mayco Oyster and Green Tea.

I used these glazes on two types of stoneware (Mile Hi Ash and Laguna Whitestone) and three types of porcelain (Mile Hi Aspen, Laguna Frost, and "The Coup" from Matt and Dave's Clays). I had really good luck with all the porcelains and fairly poor luck with both types of stoneware (craters and pinholes even though I bisque fired to cone 03). I think I'm done with anything other than porcelain for SCM.

Firing schedule was:
   400/hr to 2070
   100/hr to 2165 hold 1 hr
   9999/hr to 1700
   50/hr to 1600 hold 1 hr
   50/hr to 1500.
Total firing time approx 13 1/2 hrs.

Bowls

A pitcher

Cups

More cups

More to come...

SCM - Cone ~5 3/4

These are using the recipes and firing schedule from the Steven Hill Surface Techniques video (link 1, link 2). I skipped the Silica, which appears to be a typo, in Hanna's Fake Ash. Although they don't look like it to me, these are a little bit underfired. The kiln reached around Cone 5 3/4.

These are on Porcelain (cups) or white stoneware (mug and bowl).

All are SCM - Warm 100 with Bailey Orange Red, Hanna's Blue Ash, Watercolor Blue, and Jen's Juicy Fruit over. I did not use any Silicon Carbide.

There will be a few more pics and a little more info to come... 

Porcelain cups. Liners are Mayco ^5-6 glazes (Oyster and Cinnabar):

A bowl:


and a Mug:

Sprayed Cone 6 1/2 SCM/SiC

This is Strontium Crystal Magic+1% Silicon Carbide with Jenn's Juicy Fruit, Water Color Green, and Hanna's Fake Ash sprayed over. All but the dark vase are white ^5-7 Ash Stoneware from Mile Hi Ceramics. The vase is a dark brown ^5-7 stoneware (unknown type - a friend gave me a couple dried out mystery bags that I recovered).

Some of these also have pinhole (or tiny crater) problems to a greater or lesser degree like the sponged batch.

This is probably my last Cone 6 testing for a while. I'm switching back to ^8-10 clays for a while...

The blistering/cratering is particularly bad on the right cup in this last photo.

"Before" pics after the jump...

Sponged Cone 6 1/2 SCM/SiC

This is sponge applied Strontium Crystal Magic+1% Silicon Carbide with Jenn's Juicy Fruit, Water Color Green, and Hanna's Fake Ash sponged over. Some of the pots also had a little Spotted Black (yellow in the "before" pics). Like the last batch I "sanded" the glaze with a paper towel when it was still just barely wet. These are all on a brick-red Cone 5-7 clay called Flagstone from Mile Hi Ceramics and were thrown and bisque fired in January 2010. I got pinholes and very small craters on all of these, so I think it's probably better to avoid the SiC at less than Cone 8 unless you're using porcelain.

The liner for the two inside cups is Mayco Cinnabar, the two outside pots are lined with Coyote Clay Saturated Iron.

These are all lined with MC6G Raw Sienna.

"Before" pics after the jump...

Sprayed SCM/SiC at Cone 6 1/2

These are SCMO + 0.75% Silicon Carbide sprayed on with Jen's Juicy Fruit, Mayco Cinnabar, Water Color Green and Hanna's Fake Ash sprayed over. The liner (plus a ring around the lip) is MC6G Raw Sienna. All clays are ^5-7 from Mile Hi Ceramics.

In the first image, the left pot is porcelain and the right pot is a dark brown stoneware. The glazes are identical.

One more saggar Shino

Malcolm Davis Shino saggar fired to Cone 6 1/2 in an electric kiln. I put two pieces of charcoal cut in half and about 1/3 cup of wood chips in the saggar this time. The glaze was brushed on the outside and the liner is MC6G Raw Sienna. I spattered some wax on the outside of the pot this time. I definitely need more experimentation with this as I'd like to get a result in between the last firing and this one.

More Sponged SCM/SiC at Cone 6 1/2

Glazing is the same as the last post (done at the same time) - SCMO + 1% Silicon Carbide sponged on with Jen's Juicy Fruit and Water Color Green sponged over. There's a little Hanna's Fake Ash brushed on (basically dry-brushed) and the liner (plus a ring around the lip) is MC6G Raw Sienna. After the glaze had dried, I evened it out by "sanding" the glaze with a dry paper towel.

In this first one, the outside pots are a red cone 5-7 clay and the center pot is a ^5-7 porcelain. Glaze looked identical to the previous post before firing.

In this one, the bowls are made of a white cone 5-7 stoneware.

Sponged SCM/SiC at Cone 6 1/2

This is SCMO + 1% Silicon Carbide sponged on with Jen's Juicy Fruit and Water Color Green sponged over. There's a little Hanna's Fake Ash brushed on (basically dry-brushed) and the liner (plus a ring around the lip) is MC6G Raw Sienna. The clay is a very dark brown Cone 5-7 stoneware.

After the glaze had dried, I evened it out by "sanding" the glaze with a dry paper towel. The intent was to get rid of the really strong splotches I had with previous sponge tests. Although the picture isn't great, the glaze looks really good to me in person. It reminds me of stone that was worked a really long time ago.

Firing notes: I increased my Cone 6 firing by 20 degrees (2160) and did a 500 degree cool to 1900 followed by a 125 degree cool all the way down to 1400 (basically the MC6G cool-down).

Silicon Carbide and SCM at Cone 6

SCM (with Iron) plus 0.75% SiC, Jen's Juicy Fruit, Mayco Cinnabar (the red blush), and Water Color Green + 1.5% Cobalt Oxide. Hanna's Fake Ash sprayed a little and a ring around the top (which did not drip at all at Cone 6). The liner for this one is Amaco Smoked Sienna. The clay is Mile Hi Aspen Porcelain.

More images from this firing to come. I still definitely got a reduction look at Cone 6, but not nearly as interesting crystals as at cone 8. I have plenty more cone 6 pots for another round of testing (already glazed).

I lowered the temp of my ^8 firing schedule by 80 degrees (peak at 2140), still used an hour hold, and used a fairly slow (-200 degrees/hr) cool down to 1800. The 6 cone was perfectly dropped and the 7 cone was barely bent. For the next firing, I'll be dropping by -150/hr down to 1600 since I'm going to be using one of the MC6G glazes as a liner.

Update 2/9 - a couple of tumblers from the same firing with basically the same glaze...

Before firing...