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Tips, Techniques, and Questions -- Technical questions or tips

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  #1  
Old 2022-03-05, 11:57am
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Smokaijo Smokaijo is offline
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Default Can you make marbles using Bullseye & Boro together?

My partner has just started using Boro & loves it but Iíve seen some Bullseye for sale - can it be added to Boro or are they totally incompatible??
Please excuse my naive question as Iím a novice at this.
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  #2  
Old 2022-03-05, 1:46pm
ESC ESC is offline
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Hi! You absolutely cannot use boro with any other glass besides boro. Same goes for Bullseye. The 104 glasses are compatible sometimes, but not always. Explore the tips and techniques page, as there's a ton of info in there on mixing COEs (or not).
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  #3  
Old 2022-03-06, 7:07pm
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Sue in Maine Sue in Maine is offline
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No, absolutely now. The COE's (Cohesions of Expansion) are too far apart. Think of it like jello and ice. They're both solid forms but they don't stick together... and with glass incompatibilities, you could be talking about some glass explosions you don't want to be close to.

Sue

DRAT-I always do that! It
s COEFFICIENT, not cohesions. Why can I never remember that word?!?!?!
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Last edited by Sue in Maine; 2022-05-11 at 5:36pm.
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  #4  
Old 2022-03-07, 2:21pm
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The coefficiency of expansion for borosilicate glass is 33 COE, and for Bullseye, 90 COE. That is very far apart in terms of glass compatibility, and as has been stated, likely to shatter dramatically even if you can get them to combine.
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  #5  
Old 2022-03-08, 3:06pm
queenofsheba52 queenofsheba52 is offline
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Hey Smokaijo, glad to see you found this great glass site! There's so much info here it's glorious.

As my friend Phill says, "Welcome to the Addiction!"
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  #6  
Old 2022-03-08, 4:29pm
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Speedslug Speedslug is offline
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Aye and hide the bank numbers to the grandkids college accounts.

The most addictive glass can get real spendy in a hurry.
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Old 2022-03-08, 5:28pm
rcktscientist rcktscientist is offline
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There are epoxies that work with glass. You could always make some soft parts and some boro parts and then 'combine' the different glasses by adhering them to each other after cool down. Not quite the same but it's an idea...
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Old 2022-04-29, 1:09am
s0201228 s0201228 is offline
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You cannot use Bullseye & Boro together, since there COE is too far apart.

I made marbles and mixed soft glass into Boro mistakenly before, and here is the result:

1. The Boro mixture became soft (because soft glass was added).

2. It is full of cracks inside, like cracked ice. But is still a marble shape.
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boro, bullseye, compatibility


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