I am investigating used wave solder equipment. How important is spray fluxing versus foam fluxing, also how important is it that the unit have a hot air knife, and be nitrogen capable. We will only be using it for assorted thru hole components on mostly surface mount boards that have been already refolded. I don't anticipate doing any wave soldering of SMD components. Thanks, Fred Fred Pescitelli C.I.D. Phoenix Designs 4057 Darling Ct. Lilburn, GA 30047 Mailto:[log in to unmask] http://www.phoenixdesigns.com <http://www.phoenixdesigns.com/> Office: 770-923-3465 Cell: 404-405-7668 Fax: 770-923-2272 --------------------------------------------------- Technet Mail List provided as a free service by IPC using LISTSERV 1.8e To unsubscribe, send a message to [log in to unmask] with following text in the BODY (NOT the subject field): SIGNOFF Technet To temporarily halt or (re-start) delivery of Technet send e-mail to [log in to unmask]: SET Technet NOMAIL or (MAIL) To receive ONE mailing per day of all the posts: send e-mail to [log in to unmask]: SET Technet Digest Search the archives of previous posts at: http://listserv.ipc.org/archives Please visit IPC web site http://www.ipc.org/html/forum.htm for additional information, or contact Keach Sasamori at [log in to unmask] or 847-509-9700 ext.5315 -----------------------------------------------------