docweathers Posted January 6, 2019 Report Share Posted January 6, 2019 I decided to try some glazing modeled after the fancy stuff that cake decorators do. Does anyone have a formula for a glaze that will maintain its shape like frosting does at ^6 oxidation? Link to comment Share on other sites More sharing options...
liambesaw Posted January 6, 2019 Report Share Posted January 6, 2019 You can pipe on slip, I've seen several articles on that in pmi. Have to do it on leather hard pieces Link to comment Share on other sites More sharing options...
PSC Posted January 6, 2019 Report Share Posted January 6, 2019 Glaze is glass and glass flows so i can't imagine a glaze that can maintain a thick, stay put frosting like consistancy. I agree piping slip is likely going to be the answer for the effect you are looking for. i found you a tutorial https://ceramicartsnetwork.org/daily/pottery-making-techniques/ceramic-decorating-techniques/piece-of-cake-how-to-decorate-your-pots-like-a-pastry-chef/ Link to comment Share on other sites More sharing options...
docweathers Posted January 6, 2019 Author Report Share Posted January 6, 2019 thanks for the info I have full supply of piping tools. I really want t do this as a glaze on bisque.... on top of other glazes. Would adding alumina hydrate help the glaze keep its form.? I know it might cause some roughness. Any solution to this? Link to comment Share on other sites More sharing options...
Magnolia Mud Research Posted January 7, 2019 Report Share Posted January 7, 2019 Doc, I use a low fire grog-less white commercial clay body as a white glaze at cone 10 R. You might try a low fire clay body as a stiff slip glaze at cone 6 over (or maybe mixed with) your glaze. LT Link to comment Share on other sites More sharing options...
docweathers Posted January 9, 2019 Author Report Share Posted January 9, 2019 On 1/6/2019 at 4:46 PM, Magnolia Mud Research said: I use a low fire grog-less white commercial clay body as a white glaze at cone 10 R. You might try a low fire clay body as a stiff slip glaze at cone 6 over (or maybe mixed with) your glaze. LT I have no experience with low fire anything. What cone low fire clay would you guess might serve as a stiff majolica "cake icing"? I tried adding 20% alumina hydrate to one of my current majolica glazes. It did absolutely nothing to stiffen up the glaze. Does the strategy have any merits i.e. did I not put enough alumina hydrate in the glaze. Link to comment Share on other sites More sharing options...
Magnolia Mud Research Posted January 9, 2019 Report Share Posted January 9, 2019 The low fire clay body I use is Armadillo Longhorn White rated cone 05+-. Use an equivalent clay body from your local source. Try it on green ware and fire to cone 6 to see if it is stiff enough. If not, add some of your regular white clay body to the get the “stiffness “ you want. That’s the approach I take when developing a new technique. LT Link to comment Share on other sites More sharing options...
glazenerd Posted January 9, 2019 Report Share Posted January 9, 2019 Doc: you need a high CEC rated ultra fine particle ball clay that will create a gelatinous paste. Did not realize you grew a beard. T Link to comment Share on other sites More sharing options...
docweathers Posted January 10, 2019 Author Report Share Posted January 10, 2019 I can see where creating a thick paste for application would be useful but the problem really is the melting of the form during glaze firing. How would this fine particle ball clay help in that area? all ancient deities have beards Link to comment Share on other sites More sharing options...
glazenerd Posted January 10, 2019 Report Share Posted January 10, 2019 On January 6, 2019 at 10:59 AM, docweathers said: Would adding alumina hydrate help the glaze keep its form.? I know it might cause some roughness. Any solution to this? Right idea, wrong ingredient. New terminology: " refractory glaze." The C6 premise of adding up to 20% ball clay; need to go just above that 25-30%. The high CEC will make a paste, the added alumina (ball clay) will hold its shape (refractory). Just theory; you are the test guinea pig. Dr. Frankenstein will go to his laboratory and mix it up for you; try not to get it in your beard. Link to comment Share on other sites More sharing options...
PSC Posted January 11, 2019 Report Share Posted January 11, 2019 9 hours ago, docweathers said: all ancient deities have beards Don't let your kiln goddess hear you talking like that Link to comment Share on other sites More sharing options...
docweathers Posted January 11, 2019 Author Report Share Posted January 11, 2019 17 hours ago, PSC said: Don't let your kiln goddess hear you talking like that Sometimes I think I'm plagued with kiln devils not goddesses. But I think it's my fault because I'm constantly experimenting with new glazes and glaze combinations. Of course some of don't come out like I hoped. If Iris smart guy I would get 1/2 a dozen glazes I like and use them. But what fun would that be. On 1/10/2019 at 2:21 PM, glazenerd said: try not to get it in your beard. Gee I thought the best way to measure CEC was by taste but of course that sometimes puts it in my beard. My wife hates it when I give her a big kiss with a beard full of clay, but what fun. Link to comment Share on other sites More sharing options...
Rae Reich Posted January 12, 2019 Report Share Posted January 12, 2019 Doc, I don't think you can have a glaze that stands up and holds its shape like frosting (too fluid when melted), but white earthenware clay , thinned out a bit to act like buttercream in a pastry tube, would hold its shape and probably self-glaze when overfired. At least it has for me. You'd have to do some tests. Link to comment Share on other sites More sharing options...
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