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Lab talk, the good, the bad, and the ugly
All Porcelain-Press
Is there a problem blasting emax with aluminum oxide?
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<blockquote data-quote="Car 54" data-source="post: 115560" data-attributes="member: 85"><p>In my case, I finish 100% of my copings and frameworks down, I intentionally wax them slightly bigger, to hand finish them down with Redberries and Bluberries (Wagner Rotary Instruments) which takes care of any surface contradictions, and reaction layer surface texture. I use 100 micron Al203 to divest the main investment off, then the 50, as I figured it gets into the nooks and crannies better. Maybe I should at least try staying with the 100 micron size throughout. </p><p></p><p>On page 35 of the green manual, it says to prepare the surface for veneering with Al203 at 1 bar (15 psi). When using Alumina Oxide, it sounds like the key is to keep the pressure low.</p></blockquote><p></p>
[QUOTE="Car 54, post: 115560, member: 85"] In my case, I finish 100% of my copings and frameworks down, I intentionally wax them slightly bigger, to hand finish them down with Redberries and Bluberries (Wagner Rotary Instruments) which takes care of any surface contradictions, and reaction layer surface texture. I use 100 micron Al203 to divest the main investment off, then the 50, as I figured it gets into the nooks and crannies better. Maybe I should at least try staying with the 100 micron size throughout. On page 35 of the green manual, it says to prepare the surface for veneering with Al203 at 1 bar (15 psi). When using Alumina Oxide, it sounds like the key is to keep the pressure low. [/QUOTE]
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Lab talk, the good, the bad, and the ugly
All Porcelain-Press
Is there a problem blasting emax with aluminum oxide?
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