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Lab talk, the good, the bad, and the ugly
All Porcelain-Press
Crack detection in action
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<blockquote data-quote="Marcusthegladiator CDT" data-source="post: 119539" data-attributes="member: 7071"><p>I had a tech tell me he would take his rings out of the silicon ring formers after about ten minutes to let it cool. Why I don't know. But if you do that, the investment isn't fully expanded and you get cracks you cant see. Not until you press will you see that blowout on the side...</p><p>I remember 10 years ago when I first started pressing, I had quite a bit of trouble. After a while you realize there are no shortcuts in pressing. Everything needs to be done perfectly. After much practice you can do these things perfectly without error, blindfolded.</p></blockquote><p></p>
[QUOTE="Marcusthegladiator CDT, post: 119539, member: 7071"] I had a tech tell me he would take his rings out of the silicon ring formers after about ten minutes to let it cool. Why I don't know. But if you do that, the investment isn't fully expanded and you get cracks you cant see. Not until you press will you see that blowout on the side... I remember 10 years ago when I first started pressing, I had quite a bit of trouble. After a while you realize there are no shortcuts in pressing. Everything needs to be done perfectly. After much practice you can do these things perfectly without error, blindfolded. [/QUOTE]
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Lab talk, the good, the bad, and the ugly
All Porcelain-Press
Crack detection in action
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