bbreider Posted September 13, 2011 Report Share Posted September 13, 2011 Im trying to figure out a method of utilizing left over glazes and I thought about pouring glazes in a half circle mold to create glass/glaze forms. has any one done this? is it possible? methods? any thoughts are appreciated. b Link to comment Share on other sites More sharing options...
scoobydoozie Posted September 13, 2011 Report Share Posted September 13, 2011 Hmmm.... Interesting idea. I've worked with both hot glass and mold cast ceramics. Are you planning on using a glass separator (similar to kiln wash) to release the fired glaze? If you are planning to release the glaze from the mold, I believe the problem will be that glaze fires much hotter that glass fusing and that it won't release from the mold at the higher temperature. Plus any separator would become embedded in the glaze. Do you have a material in mind for the mold? Link to comment Share on other sites More sharing options...
Chris Campbell Posted September 13, 2011 Report Share Posted September 13, 2011 I can see how the glazes would dry in the shape of the mold, but once you heat them they will be liquid again. Kind of like ice would. Link to comment Share on other sites More sharing options...
Guest HerbNorris Posted September 13, 2011 Report Share Posted September 13, 2011 I have not done it myself, but it has been done; if I can just remember the publication that I saw it in, I will post that info. I want to say Ceramics Art & Perception, but I'm not sure... Link to comment Share on other sites More sharing options...
bbreider Posted September 14, 2011 Author Report Share Posted September 14, 2011 Hmmm.... Interesting idea. I've worked with both hot glass and mold cast ceramics. Are you planning on using a glass separator (similar to kiln wash) to release the fired glaze? If you are planning to release the glaze from the mold, I believe the problem will be that glaze fires much hotter that glass fusing and that it won't release from the mold at the higher temperature. Plus any separator would become embedded in the glaze. Do you have a material in mind for the mold? right exactly - trying to figure out how to separate it from the mold without having layer of kiln wash fused to final form. I dont think its possible, but I thought id ask the forum. any ideas on what to do with the left over glaze? besides making a mutt glaze. Link to comment Share on other sites More sharing options...
Chris Campbell Posted September 14, 2011 Report Share Posted September 14, 2011 Why not just keep it for future use? It won't go bad ... Might dry out but you can always add water. Link to comment Share on other sites More sharing options...
Guest HerbNorris Posted September 14, 2011 Report Share Posted September 14, 2011 Yes, you could dry it out and reconstitute later; or, is there a school, potter or art center that would accept them as a donation? I been searching the oldest database in the world (the human brain), but i can't remember where I saw the article on molded glazes. I wanted to try to find it so that you could reference it for any technical info that might be of use, if you want to try it. I remember it was a man that had done it, but the results were not as striking as you might hope. The glazes created sort of a glassy matrix, similar to what volvanic activity might produce,but they weren't very colorful. Well, that's just my opinion. I took note of this article because I had the same idea, only to find that someone had stolen my idea five years earlier! Does this ever happen to you? I'll keep looking for the article though, cause now it's gonna bug me... Link to comment Share on other sites More sharing options...
Chris Campbell Posted September 14, 2011 Report Share Posted September 14, 2011 I hope you do find it because I cannot imagine what you would have to coat the mold with in order for the glaze to release cleanly ... Or how you would prevent crazing ... Link to comment Share on other sites More sharing options...
jo4550 Posted September 15, 2011 Report Share Posted September 15, 2011 Yes, you could dry it out and reconstitute later; or, is there a school, potter or art center that would accept them as a donation? I been searching the oldest database in the world (the human brain), but i can't remember where I saw the article on molded glazes. I wanted to try to find it so that you could reference it for any technical info that might be of use, if you want to try it. I remember it was a man that had done it, but the results were not as striking as you might hope. The glazes created sort of a glassy matrix, similar to what volvanic activity might produce,but they weren't very colorful. Well, that's just my opinion. I took note of this article because I had the same idea, only to find that someone had stolen my idea five years earlier! Does this ever happen to you? I'll keep looking for the article though, cause now it's gonna bug me... Hi Herb Are you thinking of the work of Chad Gundersen who has just had his thesis show "All Natural" featuring cast glaze work. I haven't found an article yet but images of his work can be viewed at http://www.chadgundersonart.com/ and http://art.asu.edu/gallery/harrywood/viewevent.php?eid=801 Regards Johanna Link to comment Share on other sites More sharing options...
OffCenter Posted September 15, 2011 Report Share Posted September 15, 2011 Hi Herb Are you thinking of the work of Chad Gundersen who has just had his thesis show "All Natural" featuring cast glaze work. I haven't found an article yet but images of his work can be viewed at http://www.chadgundersonart.com/ and http://art.asu.edu/g...ent.php?eid=801 Regards Johanna Thanks for posting that! I love his work. Wish there was more info about it. Jim Link to comment Share on other sites More sharing options...
Guest HerbNorris Posted September 15, 2011 Report Share Posted September 15, 2011 Hi Johanna, Thanks for posting the link, that work is interesting. I think the work that I saw was at least ten years old, so I don't believe it was Chad, although the look of the results is similar, particularly in Chad's brown/gray/black pieces. I think Chad is adding some plastic colorant, paint or something, to get the colors he has. I'm still looking... Link to comment Share on other sites More sharing options...
bbreider Posted September 15, 2011 Author Report Share Posted September 15, 2011 thanks all -his work is interesting maybe he can provide some info to me about his process. I should express that i was thinking of this idea to get rid of the small amounts of misc glazes , mutt glazes and rinse bucket remains I already have. I just figured maybe I could make something fun with these left-overs. thanks again Link to comment Share on other sites More sharing options...
bbreider Posted September 16, 2011 Author Report Share Posted September 16, 2011 I contacted chad - though he didnt really help too much here is his response... "I'm glad you discovered my work and interested to know how you found it! What I would suggest is using hollow bisqueware as a mold for the glaze. Coating the inside of the mold with some sort of resist (kiln wash, perhaps) would also be a good idea. Since you're using scrap glazes, I encourage doing a lot of test work to see how the glaze behaves in the mold. I don't want to divulge all of my secrets, but this should get you started. Let me know how it goes!" Link to comment Share on other sites More sharing options...
Lucille Oka Posted September 17, 2011 Report Share Posted September 17, 2011 Have you tried metal casting investment? This product can be placed inside a kiln and used for lostwax casting. The product is rinsed off in water after casting and doesn't stick to the casted metal. Your fired glaze may need polishing after casting. I have never tried it with glaze but with silver casting. It seems like it has possibilities. However do the research on the equipment needed to hold the investment. Link to comment Share on other sites More sharing options...
OffCenter Posted September 17, 2011 Report Share Posted September 17, 2011 Google "cast glass". You use a special kiln wash to keep the glass from sticking to the mold. Jim Link to comment Share on other sites More sharing options...
AmeriSwede Posted September 18, 2011 Report Share Posted September 18, 2011 In casting glass, an oxy-acetylene torch can be employed by adjusting the flame to a heavy reduction flame which produces lots of carbon. This is directed toward the inner surfaces of sand molds to lay a surface of carbon directly onto the sand which serves as a separating layer between the molten glass and sand. Also in glass, a separating agent of 'liquid graphite' is often painted on surfaces like metal to prevent the glass from sticking during slumping and fusing. Since graphite is an allotrope of carbon, my thinking is that the use of a sufficiently thick layer of carbon, in one of these forms might be a good starting point for experimentation. good luck... ---rick Link to comment Share on other sites More sharing options...
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