Firing at 650c advice

[anditsinthefish]

I wondered if anyone could help, I am looking at combining art clay silver sterling and effetre/CIM. I have already mastered the pure silver version in my Maxine and have decided for strength and saleability, sterling would be better. I have done hours of research into firing schedules and the only one I have found if for COE 90 so it suggest firing at 790c. I have found another schedule that suggest the second firing at 650c, and I know this is the softening temperature of effetre. So I was wondering if anyone knew would happen to my beads if I firied them at 650c in a firing tin, in carbon, for about 1-2 hours. I will give it a test but just wondered if anyone had any tips?

[Pat from Canvey]

If this helps,
From the wet canvas forum.
"At 1100 deg Moretti/Effetre is going to go plastic and will soften and susceptible to distortion... "   1100deg F equates to about 593 deg C
For the whole thread, see http://www.wetcanvas.com/forums/showthread.php?t=165289

[anditsinthefish]

If this helps,
From the wet canvas forum.
"At 1100 deg Moretti/Effetre is going to go plastic and will soften and susceptible to distortion... "   1100deg F equates to about 593 deg C
For the whole thread, see http://www.wetcanvas.com/forums/showthread.php?t=165289

Thanks for that Pat I have fired the pure silver clay at 600c (the glass survived perfectly) ... wonder if I can push it to 650c but don't want a congealed mess in my tin of carbon

[Lakelady]

I have fired pure silver onto glass at 650 - you just need to be careful to have it suspended so it isn't touching anything or you risk having marks from whatever touched it - I know this from experience 

As far as putting it in carbon, you will end up with carbon shaped indents all over it I fear!  Let us know how you get on 

[JKC]

http://www.ugotglass.com/pmc_&_dichro.htm

Thought this might be helpful to you. Janet

[ARBeads]

Also remember that the maximum firing for the Maxi is 650 deg C......

[Pat from Canvey]

http://www.ugotglass.com/pmc_&_dichro.htm
Thought this might be helpful to you. Janet

Thanks for that JKC, a very interesting read.