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Lab talk, the good, the bad, and the ugly
Metal
Black spots on laser printed bridges!!
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<blockquote data-quote="CatamountRob" data-source="post: 348161" data-attributes="member: 660"><p>We used to use Williams W1 a lot, that was oxidized and then sandblasted, but most alloy instructions don’t say that. Some alloys will oxidize when you fire the first layer of opaque but not all of them. D.sign 84 doesn’t oxidize at the D.sign opaque firing temps. I learned that the hard way. </p><p>My experience has been that if you don’t see a nice even oxide layer after running the manufactures oxidation firing program, sandblast it and do it again.</p></blockquote><p></p>
[QUOTE="CatamountRob, post: 348161, member: 660"] We used to use Williams W1 a lot, that was oxidized and then sandblasted, but most alloy instructions don’t say that. Some alloys will oxidize when you fire the first layer of opaque but not all of them. D.sign 84 doesn’t oxidize at the D.sign opaque firing temps. I learned that the hard way. My experience has been that if you don’t see a nice even oxide layer after running the manufactures oxidation firing program, sandblast it and do it again. [/QUOTE]
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Lab talk, the good, the bad, and the ugly
Metal
Black spots on laser printed bridges!!
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