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Lab talk, the good, the bad, and the ugly
Metal
C&B Investment problems
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<blockquote data-quote="JMN" data-source="post: 215268" data-attributes="member: 8469"><p>We did small rings with 90g bags for Full Gold, max 3 FCG per ring to keep from throwing too much metal at once. Otherwise we usually did a 90g bag and a 60g bag in a larger 150g ring. max 8-9 copings avg 6-8. The UCLAs did just fine in either for us.</p><p></p><p>OH! We used slightly more liquid in winter than in summer. In winter we added 1ml more, roughly in the proportion required. We went to doing this year round and in about '10 had the investment taking longer to set, seeming more liquid than normal and went back to the 'recommended' amounts. </p><p></p><p>Before you throw yourself into a whirling headache of learning the tweaks and personality of a new material, try a new bottle of liquid from a different lot #. Done it a time or two and found it was one lot or shipment that had issues. GC may or may not have been at fault, hard to tell what temp the shipping truck insides get to.</p><p></p><p>If you get an answer, please let us know. Hope you do.</p></blockquote><p></p>
[QUOTE="JMN, post: 215268, member: 8469"] We did small rings with 90g bags for Full Gold, max 3 FCG per ring to keep from throwing too much metal at once. Otherwise we usually did a 90g bag and a 60g bag in a larger 150g ring. max 8-9 copings avg 6-8. The UCLAs did just fine in either for us. OH! We used slightly more liquid in winter than in summer. In winter we added 1ml more, roughly in the proportion required. We went to doing this year round and in about '10 had the investment taking longer to set, seeming more liquid than normal and went back to the 'recommended' amounts. Before you throw yourself into a whirling headache of learning the tweaks and personality of a new material, try a new bottle of liquid from a different lot #. Done it a time or two and found it was one lot or shipment that had issues. GC may or may not have been at fault, hard to tell what temp the shipping truck insides get to. If you get an answer, please let us know. Hope you do. [/QUOTE]
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Lab talk, the good, the bad, and the ugly
Metal
C&B Investment problems
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