Bobby Orr ceramics
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Hi, well i try to cast as soon as the ingots start to deform....the edges soften and it starts to slump, i'm wondering if i'm overheating it sometimes? But this leads me to my next question.. Are you using the multi-orifice torch again recommended by talladium?
As soon as you see it rippling on the surface......let er rip!! If you get a green oxide after opaquing, the metal is overheated.