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Tips, Techniques, and Questions -- Technical questions or tips

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  #1  
Old 2014-02-01, 10:02pm
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sMelly sMelly is offline
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Default Soft glass

I've only ever used boor, and because of my budget, I thought I'd try soft glass. What temp does it anneal? Any tips for me? Is it weaker than boro? Thanks.
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  #2  
Old 2014-02-02, 10:11am
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annealing temperatures around 950F.

It gets softer faster and stays softer longer.

It doesn't like to go from room temp directly to hottest flame, needs a bit of warming in back of flame or light dancing in/out of flame first

much more prone to cracking while working if any part gets cool and then back in flame, must keep it all warm the whole time or work in one direction only and never go back to cooler part.
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  #3  
Old 2014-02-02, 10:23am
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Some of the prettier CiM "Moonstone" colors want a higher annealing temp than normal Italian soft glass.... since I use a tone of CiM colors I anneal at boro temps (1050). I do a lot of sculpture work and haven't had much, if any, slumping issues annealing at the higher temp....
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Old 2014-02-02, 1:34pm
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Thanks. I'm going to try it now. Slow to heat, and slow to cool. Thank you
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  #5  
Old 2014-02-02, 7:46pm
Angie09 Angie09 is offline
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Quote:
Originally Posted by tilegoddess View Post
Some of the prettier CiM "Moonstone" colors want a higher annealing temp than normal Italian soft glass.... since I use a tone of CiM colors I anneal at boro temps (1050). I do a lot of sculpture work and haven't had much, if any, slumping issues annealing at the higher temp....
I've always wondered what would happen to soft glass if it were annealed with boro. So, you're saying you can anneal Effetre, CIM at that high a temp??? This really peaks my interest!
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  #6  
Old 2014-02-03, 9:52am
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^^ so long as it's a bead, marble pendant etc you can anneal at boro temps (but i'd probably adjust the ramp down to more of a soft glass ramp down) and it won't slump.

now, i made a big thin bubble of ivory and mystery silver glass, i made it for shards, but wanted to strike it first so i kilned it at 1050....and it turned into a puddle.
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Old 2014-02-05, 10:48am
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Yea.. And if it does melt... You know your kiln runs hotter than your pyrometer says.

Also if you are using silver glasses or striking colors you can burn out the color if it's too got or in there too long (except for the few kiln striking ones). Some colors that have a shine or reduction can also have the shine burn off, and some very soft colors like white and pink may slump at a lower temp than the others so watch out. I know my kiln runs a little warm but when the actual temp hovers about 1000 my whites will stick if touching.
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