MFP Posted August 5, 2019 Report Share Posted August 5, 2019 A friend made the remark to me that Amaco celadons were "fussy". Does anyone have any experience with these glazes please? Link to comment Share on other sites More sharing options...
liambesaw Posted August 5, 2019 Report Share Posted August 5, 2019 Fussy how? I have used them and they do exactly what you make them do. I think the issue some people have with them is the brushing leaves brush marks that you see after it's fired. I expected it though, since it's translucent glaze, thick spots are darker, thin spots are lighter. Link to comment Share on other sites More sharing options...
MFP Posted August 5, 2019 Author Report Share Posted August 5, 2019 Maybe you better give me a quick tutorial on this brushing application......I used to dip all my pots in 5 gallon buckets....that is not going to happen any more. I have actually seen people reference spray painting glazes....the benefit of which is? But let's start with the brushing part. Link to comment Share on other sites More sharing options...
liambesaw Posted August 5, 2019 Report Share Posted August 5, 2019 I don't brush glazes because I don't like the texture. The good news is they carry a lot of their glazes in powdered dipping form too so you can just order that Link to comment Share on other sites More sharing options...
MFP Posted August 5, 2019 Author Report Share Posted August 5, 2019 Now the spraying makes more sense. Well.....I could always pour over a bowl and then put it back in the container. Thanks for the info on the dry mix. Where did you see that offered? Link to comment Share on other sites More sharing options...
liambesaw Posted August 5, 2019 Report Share Posted August 5, 2019 The amaco website https://www.amaco.com/products/c-19-glacier?ref=2&taxon_id=270 Link to comment Share on other sites More sharing options...
MFP Posted August 5, 2019 Author Report Share Posted August 5, 2019 Thanks! I do really like these glazes if they perform as pictured. Link to comment Share on other sites More sharing options...
MFP Posted August 6, 2019 Author Report Share Posted August 6, 2019 So...are you saying that these celdaons actually stay put and do not flow? Link to comment Share on other sites More sharing options...
liambesaw Posted August 6, 2019 Report Share Posted August 6, 2019 I've only used the brushing ones and they stayed put with 3 coats. Link to comment Share on other sites More sharing options...
MFP Posted August 6, 2019 Author Report Share Posted August 6, 2019 Interesting....thanks! Link to comment Share on other sites More sharing options...
Bill Kielb Posted August 6, 2019 Report Share Posted August 6, 2019 Celedons like Amaco do not have to physically move around to break over texture etc... The hard candy clear recipe that we make is a great example. We simply add a small amount of colorant to get the shade (Celedon) we like and the colorant actually moves within the melted glaze just like Amaco except with a custom color palette of our choosing. The glaze stays put if fired within its design range, but the colorants move and break over the texture within the glaze. Link to comment Share on other sites More sharing options...
Bill Kielb Posted August 6, 2019 Report Share Posted August 6, 2019 On 8/5/2019 at 6:31 PM, MFP said: Thanks! I do really like these glazes if they perform as pictured. @MFP I finally got a decent picture of this. The stemless wine goblet (white wine) in the picture is glazed with the hard candy clear recipe (I think I posted it previously for you). The bottom half is glazed with the clear hard candy with .5% mason stain added to give it the grey color. Notice it still breaks on the chatter even though the glaze itself does not run. In this way we are able to make different color “celedon” type glazes using one base glaze recipe. Link to comment Share on other sites More sharing options...
liambesaw Posted August 6, 2019 Report Share Posted August 6, 2019 What's your hard candy recipe? I need to find one that doesn't foam over my red clay :/ Link to comment Share on other sites More sharing options...
Bill Kielb Posted August 6, 2019 Report Share Posted August 6, 2019 14 minutes ago, liambesaw said: What's your hard candy recipe? I need to find one that doesn't foam over my red clay :/ Tall order, never tried on reds but is pretty darn clear and no bubbles on white which is why we stopped at this recipe. Decent RO (Sturdy) and has not crazed on Frost, 365, and Bmix, plus a stoneware that we have in studio. Always intended to frit this but it’s been so clear left the gerstley. Hope it works for you. Link to comment Share on other sites More sharing options...
liambesaw Posted August 6, 2019 Report Share Posted August 6, 2019 22 minutes ago, Bill Kielb said: Tall order, never tried on reds but is pretty darn clear and no bubbles on white which is why we stopped at this recipe. Decent RO (Sturdy) and has not crazed on Frost, 365, and Bmix, plus a stoneware that we have in studio. Always intended to frit this but it’s been so clear left the gerstley. Hope it works for you. Thanks Bill! Link to comment Share on other sites More sharing options...
MFP Posted August 7, 2019 Author Report Share Posted August 7, 2019 No....you gave me your cone 10 white recipe....thanks for posting the hard candy one! I have Mason crimson.....how much should be added? I really want a brilliant red clear to put on texture. Link to comment Share on other sites More sharing options...
MFP Posted August 7, 2019 Author Report Share Posted August 7, 2019 Have you tried the VaL Cushing clear on your clay body? I have a handout of his that has the recipe as well as all the oxide percentages for different colors. Link to comment Share on other sites More sharing options...
Bill Kielb Posted August 7, 2019 Report Share Posted August 7, 2019 I have Mason crimson.....how much should be added? I really want a brilliant red clear to put on texture. @MFP It will take some tests. We usually are in the 1-2% range for these lightly colored celedon style looks. 8-10% zircopax is generally plenty for making something opaque white so somewhere between 0.5% -10 % to your taste would be my guess. Link to comment Share on other sites More sharing options...
Bill Kielb Posted August 7, 2019 Report Share Posted August 7, 2019 8 minutes ago, MFP said: Have you tried the VaL Cushing clear on your clay body? I have a handout of his that has the recipe as well as all the oxide percentages for different colors. I have not, but we have established these glazes to work specifically to our preference. To give an idea, we do lots of painted underglaze and throw lots of Porcelein and in the gloss clear desire a very high gloss look. So for us, works on porcelain, fires well over fairly thick underglaze and of course a nice smooth melt (no orange peel) while not moving a bunch at cone 6. As you can see we glaze all the way down to the foot as well as the inside of the foot. So no moving for us. See picture below. It took a bit to settle on these qualities as they are for very custom, one off signature sets, which means I also need to be sure it falls in a very sturdy flux range so I can be reasonably sure they last for a generation or more. There are a bunch of great glazes out there though and Cushing has a lifetime of them. Link to comment Share on other sites More sharing options...
MFP Posted August 7, 2019 Author Report Share Posted August 7, 2019 That's pretty impressive Bill. I am doing some tests with Frost in this first fire. I like the New Zealand porcelain that Clay Art Center makes but it is so sticky that it is hard to make nice handles with it. I have had a lot of cracking problems with Frost in comparison to the other porcelains I have been trying. The New Zealand is superior. I think I have finally overcome most of the cracking problems....I actually started remembering how I used to compress in the past which is not only similar to the video you shared with me but also involves removing all the surface moisture from the bottom with the rib in one last compression. My cracking has minimized since then....but Frost has still been a problem.....it can't be too thick or too thin. Link to comment Share on other sites More sharing options...
Bill Kielb Posted August 7, 2019 Report Share Posted August 7, 2019 6 minutes ago, MFP said: That's pretty impressive Bill. I am doing some tests with Frost in this first fire. I like the New Zealand porcelain that Clay Art Center makes but it is so sticky that it is hard to make nice handles with it. I have had a lot of cracking problems with Frost in comparison to the other porcelains I have been trying. The New Zealand is superior. I think I have finally overcome most of the cracking problems....I actually started remembering how I used to compress in the past which is not only similar to the video you shared with me but also involves removing all the surface moisture from the bottom with the rib in one last compression. My cracking has minimized since then....but Frost has still been a problem.....it can't be too thick or too thin. We use frost a bunch because it is so clean and white and matures at cone 6 however, it is a pain and will crack if not treated extra special throughout. Just love the very clean white especially for these one off collections. Once we find something that works it’s hard to pull away from the success and all the testing to try something new and still complete custom sets. Link to comment Share on other sites More sharing options...
Hulk Posted August 7, 2019 Report Share Posted August 7, 2019 The recipe Lady (handle "oldlady" - howevah, ah hesitate to utter "old") posted in http://community.ceramicartsdaily.org/topic/20620-does-anyone-recognize-the-source-of-this-glaze-recipe/?tab=comments#comment-165072 "Wollastonite Clear" (per my notes) clears red clay bubbles very well - best of all the clears I've tied (just seven so far). The local JC's "Functional Clear" clears bubbles as well (or better), however, it's 48% gerstley borate, which is a place I don't want to go... Clearing bubbles has to do with melting earlier on the rise and firming up later on the fall, I believe, per Tony Hansen's articles on bubbles, melt fluidity, etc.? Last firing, dropped 150F from peak, then held for twenty minutes; Wollastonite Clear came out great on the buff and red clays. Link to comment Share on other sites More sharing options...
liambesaw Posted August 7, 2019 Report Share Posted August 7, 2019 I thought it was a high melting temperature, high fluidity thing since you want to burn out the organics before it melts so they don't bubble through when it's melted. Either way, I'll mix up a test and see how it do Link to comment Share on other sites More sharing options...
Bill Kielb Posted August 7, 2019 Report Share Posted August 7, 2019 Might, this version has additional boron which does make it a very smooth melt. Have no bubbles in it on my clays so happy with the whites for sure. Late off gassers, maybe. Red clay, likely tough. I’ll dip a couple studio red test tiles and check the results in the next few days to see. We have not had anyone use it on their reds as of yet, I do not believe. Link to comment Share on other sites More sharing options...
MFP Posted August 8, 2019 Author Report Share Posted August 8, 2019 Is Frost toothy or glassy? I will show you that New Zealand when it is fired.....CAC says it is the whitest porcelain they have. It's glassy......and it feels like silk under your hands.....it is a real pleasure to throw. I have a 12 inch platter that I am agonizing over how I am going to glaze it. Hopefully something more than the Frost test tiles will survive to be fired. Any hints on managing the cracking.....of course....it has been in the 90s here which has not helped. On 8/6/2019 at 6:17 PM, Bill Kielb said: We use frost a bunch because it is so clean and white and matures at cone 6 however, it is a pain and will crack if not treated extra special throughout. Just love the very clean white especially for these one off collections. Once we find something that works it’s hard to pull away from the success and all the testing to try something new and still complete custom sets. Link to comment Share on other sites More sharing options...
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