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Lab talk, the good, the bad, and the ugly
All Porcelain-Press
Splitting Moulds
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<blockquote data-quote="JeffT" data-source="post: 295259" data-attributes="member: 1023"><p>Hi All,</p><p>Having a few hassles with molds splitting during the burn out process. Sometimes the split goes right through and ruins the press. </p><p>I am using Pro art Cad Wax ATM, but have used other milling waxes with the same result. It doesn't seem to happen with Renfert wax "hand wax".</p><p>If I start temp low and bring up, then this helps....</p><p>Are there resins in the CAD waxes that are causing expansion during burn out and splitting the molds?</p><p>Are any others on the forum seen/ing this?</p><p>Any help appreciated....cheers</p><p></p><p>Using EP 3000, burn out at 800c</p><p>Anaxvest PM investment</p><p></p><p>Thanks ....</p></blockquote><p></p>
[QUOTE="JeffT, post: 295259, member: 1023"] Hi All, Having a few hassles with molds splitting during the burn out process. Sometimes the split goes right through and ruins the press. I am using Pro art Cad Wax ATM, but have used other milling waxes with the same result. It doesn't seem to happen with Renfert wax "hand wax". If I start temp low and bring up, then this helps.... Are there resins in the CAD waxes that are causing expansion during burn out and splitting the molds? Are any others on the forum seen/ing this? Any help appreciated....cheers Using EP 3000, burn out at 800c Anaxvest PM investment Thanks .... [/QUOTE]
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Lab talk, the good, the bad, and the ugly
All Porcelain-Press
Splitting Moulds
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