Second glazing

Following on from my single firing post – where the glazed greenware came out in one piece, but the glaze hadn’t been quite as dynamic as I had hoped… I re-glazed everything and fired again!

In order for the glaze to take well I heated the mugs/bowls etc using a hair dryer and added thin layers of extra glaze, two extra coats in total. I also added an extra stripe of green or blue as the best interaction was between the indigo float and seaweed.

I don’t think the toasted sage Amaco Potters Choice glaze is a great one for encouraging movement and interaction between the two glazes, in the same way the tenmoku glaze is, but nonetheless I am much happier with the results so I thought I’d share a couple of before and after photos!

Here is an example of the mug, with an added stripe of blue:

And this is the bowl!

I like the green seaweed and the indigo float, but I want to find a better base for the two of them. The range seems to focus on darker under coats, which wasn’t what I was after. The only other lighter colour seems to be oatmeal which is quite yellow-y from the picture.

Actually the toasted sage comes out quite grey as the photos show, which in of itself is a lovely tone but wasn’t as light as I’d hoped it to be. But at least now I know I have a nice grey glaze – so every cloud has a silver (toasted sage!) lining!

A couple more things using this glaze combination and tenmoku in my etsy shop – check it out!

PS xx

Single firing

First of all, to clear up an issue from the previous post. I soaked my flaky kiln shelf and used a steel wire scrubber to remove the flaky batt wash and it worked like a dream! I thinned my batt wash with water to the consistency of skimmed milk and reapplied a thin layer and left it to dry. My kiln shelves look as good as new!

And now to single firing. I had used this technique when I made a birdbath as I was tight on time. The Mayco glazes are pretty steady with no movement at all. They also give a pretty good colour and coverage with just two thin coats. I glazed greenware and single fired the birdbath and it came out great. However I didn’t know how this technique would work with Amaco glazes.

I did a lot of throwing last weekend knowing that I wanted to use my Amaco glazes. However when I looked at my pyrometric bars, I saw I only had one or two bisque temp bars left! My little Olympic Kiln is old skool with a manual ramp dial and kiln sitter. So with precious bisque bars in short supply I thought about single firing my thrown mugs and bowls.

Amaco Potter’s Choice glazes mix and move and create beautiful effects but in order to do so, you need to apply 2, 3 even 4 coats depending on the thickness. I let my pieces dry to leather-hard and applied two coats of Toasted Sage then two coats of Indigo Float and two of Seaweed on alternate pieces. With all the glaze on they took a long time to dry but I was patient. I didn’t want to add too much because I didn’t want them running and ruining my lovely new clean kiln shelves.

I managed to pack the kiln with 3 layers and get everything in! And as I was doing a single firing I did a really slow low heat before raising the temp after an hour or two.

I fired to cone 5 and it took longer than expected to get to temperature, but it did get there in the end! I left the kiln to cool and opened up the lid holding my breath..

..Everything was in one piece! fantastic. But the glaze? ..it looked dull and thin. Not like Amaco at all and obviously not the effect I was hoping for!

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The only ones that looked decent were the two pots I used the tenmoku on first. I was hoping the Toasted Sage would be a little lighter than the grey but then again I hadn’t done a test tile and trying to guess colours from the Internet isn’t a good idea.

I admit I was a little disappointed but it’s all part of the learning process! I think overall I was happy that my single firing worked, it was just a lack of experience with Amaco glazes that meant I didn’t add enough layers.

I am confident that should I want to single fire again I could achieve results close to what I wanted.

I spent this morning re-glazing my mugs and bowls for a second firing! At least it won’t need such a long slow ramp as the mugs ceramic now but I still don’t want to rush and risk an exploding kiln! I added more layers of each glaze but also more stripes of Indigo Float and Seaweed. The colours look great when they interact so hopefully this will achieve that effect.

20170805_145347 Once they’re dry I will fire them again, sometime early this week if not tomorrow and post the final results!

I guess I’m must also admit that I’m keen to get single firing experience as it saves a lot on the electricity bill!! And if it produces the effect you want, then why not single fire? My only advice is to make sure your pieces are dry as a bone before firing and then allowing a long slow ramp. I was advised to leave extra clay clean from glaze to allow gas to escape from ghee clay body, but I just left the bottoms clean as usual and this was fine.

Happy potting!

PS xx

Blue – Brown! Amaco Potters Choice

A post a few months ago, Recent Work, showed a piece I had constructed in a relatively short amount of time but it has been a long time waiting to glaze. This is because I’ve found that sometimes my glaze choices have let me down! For example I love the depth of many of the Botz glazes but they’re thick and you need 2-3 coats, which means it just isn’t suitable for a finely textured piece. I’ve recently been using SB’s Amaco Potters Choice glazes which I really love! However she mostly has blues and pinks, and sometimes they merge into an almost denim colour. Which, if the desired effect is great! 

One glaze combination I’ve been enjoying is the Potters Choice combination of brown (55) and blue (pc20). Usually the blue is a Base colour you layer on top of however I’ve been putting the brown on first and using the blue to accent and it’s worked surprisingly well! 

I first used this glaze combination on a re-glazing and I liked the result. I used a dish made of scraps at the end of a studio session set in a former to try the glaze out on bisque and the depth of the brown was beautiful, particularly where it accentuated the marks underneath.

Re-glazed little vase.

I then tried the glaze in earnest on a larger piece I’ve been working on. It was built of textured strips, inspired by how urban forms and high rises begin to decay and look dated, are abandoned and sometimes find new life either through rehabitation or being reclaimed by nature. I used the blue glaze to highlight areas and wax resist to create contrast against the brown. I’m really happy with how it came out, the textures and marks are really visible. This is definitely a combination I will work with again! I want to put this piece in the garden near a crawler to let it become encapsulated by the plant. Hopefully it’ll grow in and out of the different parts and the green of the leaves will contrast with the deep brown.

PS xx

Amaco Glazes

SB got a whole new bunch of Amaco Glazes around Christmas time – Potter’s Choice cone 5/6, which alone in 2-3 coats give lovely vibrant colours, but also layers and striped, create some really beautiful effects! Having worked on my pieces at home recently, and therefore used my own Mayco/Botz glazes, I’m only just getting back pieces I made with SB and the Amaco glazes.

I wanted to share with you some of the pieces I’ve gotten back over the last two weeks – which if you follow me on instagram you’ll have seen already, because I love them. I LOVE THEM. Seeing these colours puts the biggest grin on my face. You’ll also see my lovely wave roller from Scarva which is my new favourite tool! £10 is a lot to spend on a small roller, but the depth and clarity of design are much, much clearer than the sugar rollers I have used for my star pieces.

  1. Slab built wave rectangle flower pot
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  2. Small round wave trinket box (available to buy from my Etsy shop)
  3. Pink and blue wave mug
  4. Slab bowl with stamp detail design

I’m going to have a play around with colours and textures in the next few weeks and post the results. There is an entire Facebook Group dedicated to these glazes and some of the results are just stunning!

So far they’ve behaved well for me, interacted with each other but not run at the bottom so I’ve had no problem with pieces sticking to kiln shelves or such the like. I’ll have to ask SB what temperature she’s firing at, but so far I’ve been really, really happy with the results!

Is it too early to start a Christmas list?

PS xx

P.S. Throw Down Semi Finals Tonight!!

*SPOILER ALERT*

Devastated Nam went last week. His Russian Dolls weren’t up to scratch, so it was the right call, but he was by far my favourite. I loved his creativity, his designs had clarity and were really playful in different, dyNAMic ways, he seemed like a really genuine and compassionate human being. Let’s see who survives the Great Toilet Challenge and what Johnny Vegas gets up too this week!