hi, i don't know the exact conditions of your pwb, but might it not be possible to run it through a solder dip and hot air leveling operation? phil -----Original Message----- From: TechNet [mailto:[log in to unmask]]On Behalf Of Cheryl Tulkoff Sent: Monday, August 09, 2004 12:45 PM To: [log in to unmask] Subject: [TN] Removing solder from PTH barrels Does anyone have any clever suggestions on how to get solder (all of it) out of .024" diameter PTH barrels? The barrels are supposed to be completely clear of solder since they are used for a press-fit connector. There is just enough solder in the holes to keep the connectors from seating properly. The barrels ended up with solder paste in them after some boards were run using the wrong stencil. The operator wiped the boards by hand towards the holes forcing some solder paste into the barrels. He didn't follow up with a clean either. While I'm at it, does anyone have a really good process for cleaning misprinted boards? Obviously, our current procedure wasn't followed but maybe someone has a better way. Thanks, Cheryl --------------------------------------------------- Technet Mail List provided as a 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/contentpage.asp?Pageid=4.3.16 for additional information, or contact Keach Sasamori at [log in to unmask] or 847-509-9700 ext.5315 ----------------------------------------------------- --------------------------------------------------- Technet Mail List provided as a 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/contentpage.asp?Pageid=4.3.16 for additional information, or contact Keach Sasamori at [log in to unmask] or 847-509-9700 ext.5315 -----------------------------------------------------