After much farting about, finally have a web-update with positive results using Petro-Bond sand casting...
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Frank
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Petro-Bond Casting - Web Update Posted
Jan 26, 2005
1 Replies
Petro-Bond is good stuff. Only downside I am aware of is emissions because of what heat does to the petroleum based binder. One small shop I know of went back to green sand because emissions were just over the limit of what was allowed locally.
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