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Lampwork => Lampworking Tip n Tricks => Topic started by: firedinglass on October 09, 2010, 01:05:21 PM

Title: Annealing schedule for silver glass
Post by: firedinglass on October 09, 2010, 01:05:21 PM
i have a question that has been puzzling me re the schedule for silver glass and how people adapt this to their lampworking sessions.  If silver glass needs to be garaged at 487C  and annealed at 493C  does this mean that you can only make silver glass beads in that session.  I would normally want to make a mix of non silver glass beads( say effetre/vetrofond)  and beads containing elements of silver glass in the same session.  But how would the lower temps effect the stability of the effetre beads.  What do most people do,   :-\
Title: Re: Annealing schedule for silver glass
Post by: firedinglass on October 10, 2010, 08:30:41 AM
Isn't there anybody out there who could help by  giving me an idea of the schedule they use for SC2 kiln Pleaaaasseee! :)
Title: Re: Annealing schedule for silver glass
Post by: Kaz on October 10, 2010, 08:56:11 AM
I don't do anything different to my normal garaging/batch annealing schedule when I use silver glass.
Kazx
Title: Re: Annealing schedule for silver glass
Post by: firedinglass on October 10, 2010, 09:05:04 AM
Thanks Kaz, i've been looking on LWE and they say garage lower and anneal longer.  I know Astrid garages at 400C and anneals at 475C..... that's what confused me!  Guess i'll try it all ways and keep fingers crossed :)  Not having much luck in consistent results (in fact mostly yukky!)  but i'll keep trying :)
Title: Re: Annealing schedule for silver glass
Post by: MadelineBunyan on October 10, 2010, 09:38:45 AM
yeah, I just leave it at what I normally use, which is a bit on the high side by most peoples standards perhaps, but what do I care? Pandora works in it!
Title: Re: Annealing schedule for silver glass
Post by: Shirley on October 10, 2010, 09:52:40 AM
I tried setting my kiln about 10 degrees lower on all aspects of the programme because I thought my normal programme was not working for silver glass. Turned out the problem was something else entriely so now I anneal silver glass along with all the rest on my normal programme.

I think Trudi uses a different programme, so might be worth asking her.
Title: Re: Annealing schedule for silver glass
Post by: Margram on October 10, 2010, 01:38:04 PM
I garage in my SC3 at 500 and anneal at 510 and have started holding for an hour instead of 30 minutes - don't know if that does anything, but I think someone advised it :-\.  My kiln reads a higher temperature than it should when switched on though...
Title: Re: Annealing schedule for silver glass
Post by: firedinglass on October 11, 2010, 08:39:19 AM
many thanks will give it another go taking on everyone's advice! :)
Title: Re: Annealing schedule for silver glass
Post by: Trudi on October 11, 2010, 09:52:08 AM
Hi
this is on the Wiki - http://www.frit-happens.co.uk/wiki/Annealing#Annealing_Schedule_for_COE_104_Silver_Glass_in_a_Paragon_SC2_-_as_you_go

It's basically a lower temp for longer - I read it on another forum (may have been torch bugs???). I tried it as others were raving about it  - but it really made no difference ........ to me anyway.

Some silver glass my be more sensitive - Taxco for example is, but a way to overcome that is to make these beads towards the end of your torching session.

I garage at 500°C and anneal at 520°C as standard - if I'm working on kiln striking glass (Nyx or Pandora) or glass like Halong Bay or Peacock - I increase the annealing temp to 545°C. I have also tested some opaques at this temp (white, fossil & ivory) and these have came out just fine!

Sometimes if you're finding that your reduction or effects from silver glass are not coming out right it could be due to the "atmosphere" in your kiln. I've not had this problem but if you search on the threads (or wiki?) you may find some info re activated charcoal.

Hope that helps.