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View Poll Results: Type of glass you melt
Spruce Pine batch 15 35.71%
Glasma batch 5 11.90%
Corning batch 0 0%
East Bay Batch 1 2.38%
homemade batch 9 21.43%
Kugler cullet 2 4.76%
Oceanside cullet 0 0%
Bomma Cullet 9 21.43%
Cristalica cullet 2 4.76%
other 4 9.52%
more than a ton per year 12 28.57%
Multiple Choice Poll. Voters: 42. You may not vote on this poll

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  #1  
Old 10-05-2022, 09:18 AM
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glass used to make stuff

Is it batch, cullet which cullet found objects?
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Old 10-05-2022, 06:33 PM
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You have Kugler cullet down twice
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Old 10-05-2022, 08:18 PM
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I pulled one listing, thanks
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Old 10-08-2022, 11:59 AM
George Bland George Bland is offline
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Batch, spruce pine.
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Old 10-08-2022, 07:20 PM
Peter Bowles Peter Bowles is offline
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if you are interested in having input from outside the US, gaffer batch for us - 2-3 tonnes.
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  #6  
Old 10-08-2022, 08:54 PM
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I'm quite interested in where it is mixed and how frequently you buy it and from who.
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Old 10-08-2022, 09:48 PM
Philip Yamron Philip Yamron is offline
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Spruce pine extra clear and color base
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Old 10-09-2022, 06:18 AM
John Riepma John Riepma is offline
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Spruce Pine EC
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Old 10-15-2022, 04:25 PM
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So, what falls in the category of "Other"? Help!
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Old 10-15-2022, 06:08 PM
Eben Horton Eben Horton is offline
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Quote:
Originally Posted by Pete VanderLaan View Post
So, what falls in the category of "Other"? Help!
Probably the sodium silicate railcar dust
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Old 10-15-2022, 06:17 PM
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Five is a lot. I'll post a few different polls.
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Old 10-15-2022, 09:20 PM
Michael Ahlefeldt-Laurvig Michael Ahlefeldt-Laurvig is online now
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Ive also melted a couple of hundred kg of Philips batch, but because I was using green clay pots, and mine were ”acidic” the glass was slightly Green
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Old 10-18-2022, 07:46 PM
Ron Mynatt Ron Mynatt is offline
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I posted other: it is the sodium silicate 57 % 43 % modifiers but it is batch my own
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Old 10-19-2022, 07:28 AM
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I would have listed that as "Homemade"
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Old 10-20-2022, 09:55 AM
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Quote:
Originally Posted by Ron Mynatt View Post
I posted other: it is the sodium silicate 57 % 43 % modifiers but it is batch my own
***
I moved your vote to homemade batch and hope that's OK
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Old 11-16-2022, 04:11 PM
Rich Arentzen Rich Arentzen is offline
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Ao

Usually Glasma 46 (crystal). Sometimes Glasma 705. Sometimes SP. SP spider webs white in baking soada. Glasma just creates bubbles....
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Old 11-16-2022, 04:32 PM
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Quote:
Originally Posted by Rich Arentzen View Post
SP spider webs white in baking soada. Glasma just creates bubbles....
***
I don't quite appreciate the thing you are trying to point out here. Can you explain?
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Old 11-17-2022, 08:51 AM
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I'm trying to understand this apparent awe that some hold for the apparently flawless Swedish Glass Institute. Calculating glass formulations have been up Corning's alley for over 100 years. We don't hold them up like that.
Further, Corning doesn't make and sell batch. It just does what it does with Corning products and over the years they've developed Pyrex as well as fiberoptics and the glasses used at Steuben in its heyday.

GLASMA until recently sold cullet and then abruptly stopped. Why are they held in reverance?. From where I sit, it's another place that calculates glass formulas. It's not particularly hard to do if you dedicate yourself to it. There is an arm that writes formulas and apparently an arm that mixes them.

I continue to think it's fundamentally nuts to ship either cullet or batch across the atlantic. If Spruce pine had a better way of making batch agglomerate, that would be a very good thing. My most recent batch of the PWV96 was virtually dustfree. It took a bit of whacking to get it right but it wasn't hard.
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Old 11-17-2022, 09:40 AM
Josh Bernbaum Josh Bernbaum is offline
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Quote:
Originally Posted by Pete VanderLaan View Post
I continue to think it's fundamentally nuts to ship either cullet or batch across the atlantic.
Agreed. We use enough energy as it is in gas and/or electricity doing what we do to have to add the fuel it requires for international shipping into the mix. And if it's cullet made overseas, that's one more thing to add to the carbon footprint with the one additional melt cycle of what was the original batch.
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Old 11-17-2022, 09:44 AM
Josh Bernbaum Josh Bernbaum is offline
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Quote:
Originally Posted by Pete VanderLaan View Post
If Spruce pine had a better way of making batch agglomerate, that would be a very good thing. My most recent batch of the PWV96 was virtually dustfree. It took a bit of whacking to get it right but it wasn't hard.
Since mixing my own color batches and charging this powdery, dusty stuff, I'm more and more impressed with how pelletized batch is so much more dust-free. Even SP's which can vary on the agglomeration bag to bag. I sort of understand public studios' or schools' want to keep dust down by using cullets but the pelletized batch is really so dust free compared to just a plain dry powdered mix.
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Old 11-17-2022, 03:23 PM
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I was surprised and pleased with how little dust the agglomerated version of the PWV96 clear had. I was also impressed with how clean the glass was that Josh sent me as samples. The clarity in my melt was excellent as well.
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  #22  
Old 11-17-2022, 04:35 PM
Michael Ahlefeldt-Laurvig Michael Ahlefeldt-Laurvig is online now
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Corning is a company that does its own work. The research biz and Glasma are two different entities that does what you ask of them to do, not two arms of a company. You could ask glasma to make your batch, Pete, thats what they do. Pelletized for as long as Ive been at it. Or you could ask the research company to develop a version of it that works in a fast wine glass production line for example as opposed to underpowered studio furnaces in the US
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Old 11-17-2022, 04:46 PM
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Corning will do any testing at anyone's request. Corning makes glass constantly. As near as I can see, the hallowed "institute" is an arm of producing glass batches. We have more than one business in this country that does that. Some are far better than others. At GLASMA, one hand washes the other.

Look at the number of people in the poll who make their own batch glasses. It's surprising.
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  #24  
Old 11-17-2022, 05:14 PM
Michael Ahlefeldt-Laurvig Michael Ahlefeldt-Laurvig is online now
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Obviously youre missing the point. But Im not going to argue with you about it.
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Old 11-17-2022, 05:44 PM
Michael Ahlefeldt-Laurvig Michael Ahlefeldt-Laurvig is online now
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I started out mixing my own batch. I didnt have a clue what Iwas doing- thats not a argument
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