Can I use this kiln for glass? - WarmGlass.com

Can I use this kiln for glass?

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Matthew900
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Can I use this kiln for glass?

Postby Matthew900 » Fri Sep 25, 2015 7:55 pm

Hi, I bought a kiln this week at auction and when I got it home I discovered it's actual a kiln for heat treating metal. It's a paragon PMT21 and it has a sentry 2.0 controller that looks the same as the ones on the cermic/glass kiln. When I looked it up on line it appeared that only diffrence was that it could go to a higher temp but I wanted to make sure there isn't an other possible issues before I give it a try. Thanks!

Matt

Valerie Adams
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Re: Can I use this kiln for glass?

Postby Valerie Adams » Fri Sep 25, 2015 11:37 pm

Others with more experience my join in but as far as I can tell, there's no reason you can't use it for glass (and ceramics too, if you want to make your own molds at some point). Many people are using pottery kilns for glass, and they don't have the benefit of the controller you've got. Paragon offers great customer service; Arnold Howard is a frequent contributor to several FB groups and has posted here too. I'd download the manual for your kiln if you don't have it, and also the manual for the GL-24, since your kiln looks similar.

Get your hands on some scrap glass and begin practicing. Take good notes and check back with questions.

Morganica
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Re: Can I use this kiln for glass?

Postby Morganica » Sun Sep 27, 2015 5:31 pm

I'm with Val; if you can use that kiln to control temperature precisely for any given period of time, you can fuse and slump and cast glass with it. There are some great online resources (this is one; head over to the Bullseye Glass website and subscribe to their video tutorials, too), and then start practicing.
Cynthia Morgan
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Arnold Howard
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Re: Can I use this kiln for glass?

Postby Arnold Howard » Tue Sep 29, 2015 8:34 am

Thanks Valerie!

I agree that the kiln can fuse glass. I would run test firings to determine if the area near the front is cooler than the rest of the firing chamber. If so, place pieces near the front that are designed for a lighter fuse. Place pieces toward the back that need a fuller fuse.

Sincerely,

Arnold Howard
Paragon Industries, L.P., Mesquite, Texas USA
ahoward@paragonweb.com / www.paragonweb.com

Matthew900
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Re: Can I use this kiln for glass?

Postby Matthew900 » Tue Sep 29, 2015 12:38 pm

Thanks for the responses everyone! I successfully slumped a bottle and plan to try fusing some scrap glass this week.

I did have one question, is there any way for me to add a viewing window or a peep hole to the kiln? I figured since it doesn't have coils in the door it would be a possible to add one there. Is a there a generic viewing window that I could use? Or could I remove the door and send it to Paragon to have it altered? I think it would be really helpful to be able to watch what is going on since I'm learning.

Thanks!

Arnold Howard
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Re: Can I use this kiln for glass?

Postby Arnold Howard » Tue Sep 29, 2015 12:56 pm

I agree that it would be helpful to watch the glass as it fuses. Yes, you can install a window. Here are instructions:

http://www.paragonweb.com/ManualInfo.cfm?CID=130

Be sure to wear green #3 firing safety glasses when you look through the window. Please let me know if you have questions.

Sincerely,

Arnold Howard
Paragon Industries, L.P., Mesquite, Texas USA
ahoward@paragonweb.com / www.paragonweb.com

Valerie Adams
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Re: Can I use this kiln for glass?

Postby Valerie Adams » Wed Sep 30, 2015 6:31 pm

Matthew900 wrote:I think it would be really helpful to be able to watch what is going on since I'm learning.



Or, you could do what many of us do: open the door (slowly!) a tiny bit and peek!

I know there are lots of temperatures where you're not supposed to do that, but I've been peeking inside my kilns for over 15 years, and at various temperatures, and nothing bad has happened (knock on wood!).

Matthew900
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Joined: Fri Mar 27, 2015 9:55 am

Re: Can I use this kiln for glass?

Postby Matthew900 » Wed Sep 30, 2015 7:34 pm

I ran my first fuse last night and it took everything I had not to open it and look. I'm going to order the window, for the price it's worth it. Since I'll be mostly working with bottle glass the trial and error will be a lot easier if I can see what's happening.

Valerie Adams
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Re: Can I use this kiln for glass?

Postby Valerie Adams » Wed Sep 30, 2015 11:01 pm

Why wouldn't you look?

I'm not suggesting throwing the door open and reviewing every square inch of your piece, but cracking the door a little and taking a quick glance won't be an issue.

Arnold Howard
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Re: Can I use this kiln for glass?

Postby Arnold Howard » Thu Oct 01, 2015 8:23 am

You can open the door 1/4" as the glass turns orange. Watch the glass a few seconds at a time as it begins to fuse. You will know exactly when the glass has finished fusing.

Sincerely,

Arnold Howard
Paragon Industries, L.P., Mesquite, Texas USA
ahoward@paragonweb.com / www.paragonweb.com


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