Are you sure you really want to eliminate dross? Years ago I ran an oil covered solder bath that developed very little dross. On the other hand contaminants (copper and gold) built up and the pot would have to be dumped completely. It was a job shop so quantity and type of PWA soldered varied. This led to frequent sampling and testing for contaminants so it wouldn't get out of hand. Economic analysis led us to believe that a "dry" (no-oil) wave was less expensive overall since the dross carried the contaminants out with it. We also tried a powder chemical that put the dross back into solution, but it created the same problems as the oil. Gordy Seppanen Materials Engineer-Surface Finishing Lab Honeywell Inc 612/951-5522 [log in to unmask] _______________________________________________________________________________ To: [log in to unmask] From: Hollandsworth, Ron on Wed, Aug 14, 1996 4:28 PM Subject: assy: Dross elimination Hello TechNetter! Question for all the wave solder folks. Have any of you found a way to totally eliminate dross from your wave solder machines? *************************************************************************** * TechNet mail list is provided as a service by IPC using SmartList v3.05 * *************************************************************************** * To unsubscribe from this list at any time, send a message to: * * [log in to unmask] with <subject: unsubscribe> and no text. * ***************************************************************************