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Old 06-28-2018, 02:49 PM
Chris Lowry Chris Lowry is offline
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Color Furnace Rental

So I've been wanting to make some pieces using a color furnace... does anyone know of a shop that you can rent that will allow color in the furnace? It would be simple light tints, blue, green, amber... Need at least 100 lb tank.

Just a thought and dream.

Aloha
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Old 06-28-2018, 03:26 PM
Kenny Pieper Kenny Pieper is offline
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Chris if you are doing only light tints why not use your own furnace? Most colors, and the ones you mentioned for sure, you would be able to do in an electric. If you dont want to do that fly out here to western N.C. and you can use my color furnace with a couple of 50 lb. pots.
Tell you what bring your family, stay in my house, use my shop and my wife and I will trade places with you!
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Old 06-28-2018, 03:43 PM
Chris Lowry Chris Lowry is offline
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Yeah this might be one of those times I was writing before thinking. Doing it in our furnace right before we switch pots would probably be the easiest.

Ha and thanks for the offer, I do think something like that could be fun but always harder to actually do. Do you blow glass in the summer or is it too hot over there. We usually turn off since it is slow over here but we might be on most of the summer this year.
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Old 06-28-2018, 06:03 PM
Jordan Kube Jordan Kube is offline
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Skutt glass melter, 80# pot, probably be around $3-3.5k delivered to Maui. You won't be sorry for long!
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Old 06-28-2018, 06:20 PM
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Pete VanderLaan Pete VanderLaan is offline
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"Use my pot and my wife"? Really?
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Old 06-28-2018, 06:49 PM
Chris Lowry Chris Lowry is offline
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Jordan, you have used one? They hold a 80lb pot? Can they get hot enough to melt batch? Can you open the whole door easy enough to take bigger gathers?

Interesting idea
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Old 06-28-2018, 07:05 PM
Peter Bowles Peter Bowles is offline
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I used to do tints (and some denser melts) in our 120kg pot quite frequently, and intermittently between clear melts.
If your pot is in fairly good shape, and as long as you strip the pot right to the bottom after each tint its actually very quick to come back to melting clean clear again.
I used to sequence colours from light aqua, to cobalts, to teals, and then into greens or greys. Strip everything out, do a clear wash melt, which might have the faintest of remaining hues, and then next melt you would never know even with normal thickness blown work. The next clear melt would be as good as anything for thicker work.
I only used to fill the pot to about 100mm from the rim with the colour melts to ensure the subsequent clear melts would wash away any remaining colour.

Something to add to this, was each colour I melted I would cast a wedge shaped piece of glass tapering from 50mm to 10mm over 200mm (and about 100mm tall). Whenever I wanted to melt a glass with a specific density I could see where along the wedge the colour I wanted was - and calculate the relative % of oxide at that point. And if needed extrapolate that to different required thicknesses for whatever i was working on.

Once you have a few of these wedges it makes blending tones super easy by stacking them together at variable thicknesses to give different hues. And then simply calculating the oxide content at the desired point.
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Old 06-29-2018, 07:16 AM
Kenny Pieper Kenny Pieper is offline
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Quote:
Originally Posted by Chris Lowry View Post
. Do you blow glass in the summer or is it too hot over there. We usually turn off since it is slow over here but we might be on most of the summer this year.
Chris up here in the mountains it is not nearly as hot and humid as the rest of the state so most of us blow through the summer.
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Old 06-29-2018, 08:11 AM
Marty Kremer Marty Kremer is online now
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Originally Posted by Kenny Pieper View Post
Chris up here in the mountains it is not nearly as hot and humid as the rest of the state so most of us blow through the summer.
The only reasonably comfortable blow time at Penland was from 2am to 5pm.
I suppose one acclimates.
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Old 06-29-2018, 08:16 AM
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Pete VanderLaan Pete VanderLaan is offline
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Quote:
Originally Posted by Marty Kremer View Post
The only reasonably comfortable blow time at Penland was from 2am to 5pm.
I suppose one acclimates.
*******
15 hours?
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Old 06-29-2018, 09:15 AM
Marty Kremer Marty Kremer is online now
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It was an intensive class.

2am to 5am
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Old 06-29-2018, 11:06 AM
Jordan Kube Jordan Kube is offline
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The port isn't terribly large. You could definitely modify your gather to be long and skinny to get a decent size. I would buy new so you know what you are getting. The boro guys run them at 2300 continuously. I haven't been able to get more than 6 weeks out of a set of elements at those temperatures but you can melt certainly do batch.
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Old 06-29-2018, 11:18 AM
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Quote:
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It was an intensive class.

2am to 5am
Apparently. It seemed like a long blow slot.
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Old 06-29-2018, 11:50 AM
Kenny Pieper Kenny Pieper is offline
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Quote:
Originally Posted by Marty Kremer View Post
The only reasonably comfortable blow time at Penland was from 2am to 5pm.
I suppose one acclimates.
Yea thats a hot studio now.
A lot of us have good ventalation
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Old 06-30-2018, 09:51 AM
Dan Vanantwerp Dan Vanantwerp is offline
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Hi Peter, That's a nice system for predicting color density based on thickness. I didn't quite get how the wedge relates to % oxide. Could you explain that a bit more?
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