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Lab talk, the good, the bad, and the ugly
All Porcelain-Press
De-bubblizer
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<blockquote data-quote="charles007" data-source="post: 24306" data-attributes="member: 9"><p>No bubbles, no debubblizer with Yeti die lube .......Since I started using Yeti, I almost never get any kind of bubbles...</p><p></p><p>I used a box of speed press, no problems with an instrument, use a brush on the occlusal. Put investment in you pattern before you put the ring on, while you investment is more runny....then quickly place the ring on and pour about 16" or so above with your bowl with light vibration. Don't over virbrate. I only vibrate when the investment is flowing in the pattern and just a second after I finish. </p><p>I now use Microstar HS, since I use on my pfms...its a thinner mix. I use the same technique. Brush investment over your pattern so you want get bubbles in your grooves . </p><p>If you flow into your ring first ,then flow into your pattern, you may get large bubble. Use an instrument or brush on a thin amount in the bottom of the pattern and add more with light vibration on the edge of your vibrator........Don't just drop in a large amount of investment . Just like pouring a model, you want to see the investment flow to the bottom of the pattern and flow up.... If it flows in to fast, very quickly put your instrument to the bottom of the pattern or wipe out with a brush.....</p><p></p><p>Yea, I know brushes can traps air, its really a matter of learning how to use either. </p><p>Lastly, follow the mixing directions very carefully, and don't waste time.</p></blockquote><p></p>
[QUOTE="charles007, post: 24306, member: 9"] No bubbles, no debubblizer with Yeti die lube .......Since I started using Yeti, I almost never get any kind of bubbles... I used a box of speed press, no problems with an instrument, use a brush on the occlusal. Put investment in you pattern before you put the ring on, while you investment is more runny....then quickly place the ring on and pour about 16" or so above with your bowl with light vibration. Don't over virbrate. I only vibrate when the investment is flowing in the pattern and just a second after I finish. I now use Microstar HS, since I use on my pfms...its a thinner mix. I use the same technique. Brush investment over your pattern so you want get bubbles in your grooves . If you flow into your ring first ,then flow into your pattern, you may get large bubble. Use an instrument or brush on a thin amount in the bottom of the pattern and add more with light vibration on the edge of your vibrator........Don't just drop in a large amount of investment . Just like pouring a model, you want to see the investment flow to the bottom of the pattern and flow up.... If it flows in to fast, very quickly put your instrument to the bottom of the pattern or wipe out with a brush..... Yea, I know brushes can traps air, its really a matter of learning how to use either. Lastly, follow the mixing directions very carefully, and don't waste time. [/QUOTE]
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Lab talk, the good, the bad, and the ugly
All Porcelain-Press
De-bubblizer
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