can you use a PMC kiln for glass annealing?

when they say the kiln fuses glass - does that also imply that it will anneal glass beads?

(I'm looking at the PMC Kiln in the riogrande catalog, pg. 12 - wondering if there is a better option that will do both glass bead annealing and PMC?)

thanks :) Pam

Reply to
Pam
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the other kiln I'm looking at is this one:

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's the last kiln on the page for $212.00 about the same interior size asthe PMC Kiln but not digital - I guess that is the major difference for$300+. Is the digital worth it I wonder? any thoughts?

Reply to
Pam

Fusing temps, PMC temps and annealing bead temps are all different, but a lot of kilns out there will do more than one. Here are some links about this subject:

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am sure there is a lot more information out there...good luck! :)

Reply to
Kandice Seeber

glass beads?<

No - it's totally different, and there are several kilns that will fuse but NOT anneal. They are usually far less expensive.

Carol in SLC New auctions:

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Reply to
Carol in SLC

The difference between a ceramic kiln and an annealer is a ceramic kiln is designed to ramp up to a high temp, then ramp back down; an annealer is designed to ramp up to a certain temp (between 900F and 1100F depending on the type of glass used) and hold at that temp, with the possibility of holding again at a lower temp (usually around 700F). With beads, and thin fused pieces, the second soak is not that important due to the relative thinness of the glass. If the kiln you are looking at will do that, plus go up to higher temps for PMC or fusing you have a multi-use kiln. You don't need to be fusing in any kiln that you can't anneal in. Fused pieces need to be annealed as much as lampworked pieces for the exact same reason. The amount of annealing required is based on the thickness of the glass, not the techniques used to heat the glass. For more info on annealing, go to Henry Halem's site

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Reply to
Louis Cage

Any kiln that holds the temp at annealing point (roughly 960-970 for Moretti) for the requisite amount of time, and can cool slowly, can be used to anneal glass. Does it have a digital controller, or would you have to sit next to it and babysit the temperature?.

Reply to
Kalera Stratton

Yes, absolutely. I used a fusing kiln with no controller for waaay too long and life with a digital controller is so much nicer!

Reply to
Kalera Stratton

I'll bet it pays for itself too in artwork which is salable, aside from the value of your time.

Tina

Reply to
Christina Peterson

Just found this link, hope it's still relevant:

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Reply to
CLP

Thanks Christy - this is a great link!

I'm still unclear about how you anneal the beads in some of these multi-purpose kilns - it seems they are too small to put the mandrels in, so perhaps they are for batch annealing?

Pam

Reply to
Pam

If the kilns have a bead door or small door in front, the mandrels can hang out the front without too much heat getting out. If there's a digital controller, it will increase the heat to make up for what gets out by having the door cracked. I only slide my mandrels in about half way so that I can move them around without burning my hands if I need to.

Reply to
Kandice Seeber

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