The cover 'salt' is essential to keep the roller wetted. We tried many alternative dross absorbing oils and they work ok until you start processing panels. Why do you want to eliminate the salt? -----Original Message----- From: TechNet [mailto:[log in to unmask]] On Behalf Of Baski Devre Sent: 12 July 2006 16:39 To: [log in to unmask] Subject: [TN] Roller Tinning Process Dear Technetters As you know that some PCB manufacturer uses roller tinning soldering process. In this process firstly flux is spread over PCB and then passed through rollers to be soldered. In this solder alloy sometimes a bit salt is added to improve soldering quality and help solder to be appread bright. I want to learn that if there is any alternative material used in roller tinning soldering process to elaminate salt or is there any alternative roller tinning soldering process flow. Thanks in advance to your comments and knowledge share Best Regards -- Yusuf GÖMEÇ Product Quality Engineer BASKI DEVRE SAN ve TIC LTD STI Ceyhan Sk. No:10 34896 Pendik-Istanbul-Turkey Tel: 00 90 216 3901036 (4 Hat/Line)-173(Extention) 00 90 216 4836560 (4 Hat/Line)-173(Extention) Fax: 00 90 216 3544941 00 90 216 4913269 Gsm: 00 90 533 6579897 00 90 533 7480014 msn: [log in to unmask] --------------------------------------------------- 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 847-615-7100 ext.2815 ----------------------------------------------------- --------------------------------------------------- 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 847-615-7100 ext.2815 -----------------------------------------------------