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  #101  
Old 06-09-2018, 07:01 PM
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Pete VanderLaan Pete VanderLaan is offline
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Quote:
Originally Posted by Dan Vanantwerp View Post
10 lbs. My color crucibles are 17 lbs. I am able to get 6-8 lbs charged before my first blow session Saturday and then top off with the rest for Sunday.
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If you are using 10 lb mixes, if I understand that correctly, and you are adding around 300 grams of material to a mix you say Jim at East bay has already mixed, and you suggest it is mostly mixed by east bay, I think you're wrong. What I do think is that you're adding about 8% new materials to Jim's stuff in various semi hostile forms. In my mind, that''s a very large number. so, again, how are you mixing this new stuff in? What is your mixer?

Process is key in doing this stuff.
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  #102  
Old 06-10-2018, 11:39 PM
Dan Vanantwerp Dan Vanantwerp is offline
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Success!

New recipe based on a 86.5 LEC worked perfectly for both the Cristalica AND Chalcedony glasses. Seems this stuff really wants a relatively low theoretical expansion to match a "96" glass just as Jordan suggested.

I performed the ring test with inside and outside applications. I was surprised enough when I opened the annealer to find everything intact. To pass the ring test with flying colors was hoped for, but really unexpected.

Going to repeat the formula in a larger scale and see if it passes a second analysis. Strangely, this mix seemed to strike a bit more quickly/easily than the previous mixes so I'll see if that remains consistent.

Pete, I'm doing my best to mix in a little food bucket I got at the restaurant supply store. They actually make a strainer that fits right on the top of it. I bought the lid and do some hard shaking, rolling and turning. I have thought of trying to secure it closed and place it in my cement mixer for a while. I've also used the drill mixer method but I don't think it's as thorough as what I've described.
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  #103  
Old 06-11-2018, 06:12 AM
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I am glad you are getting a fit. With the mixing you describe, I kind of doubt your results will be consistent. When I do a color additive using my clear that Spruce Pine mixed for me, in 14 lbs, adding seven grams, it goes back in the cement mixer for a half hour.
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  #104  
Old 06-12-2018, 02:50 PM
Dave Bross Dave Bross is offline
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Get yourself a drill driven paint mixer, preferably plastic but steel works fine. The steel ones eventually eat up the bucket.

This will mix it up REALLY well and make you feel less like a performing monkey rolling a bucket around.

You can fabricate a dust cover for the bucket from plastic, cardboard, or whatever. The commercial ones look like a shower cap for someone with a head the size of a bucket and a hole dead center for the mixer shaft.

I just take it outside and wear a respirator and gloves.


https://www.homedepot.com/s/paint%2520mixer?NCNI-5
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Last edited by Dave Bross; 06-12-2018 at 02:53 PM.
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