Hi Guenter! Great information! One additional question - do you know if the molten tin attack is more severe on base stainless steel alloys such as the 301-304 alloy series or are the microalloyed 316/321/347 alloy series equally attacked? Also, I have always made the assumption that titanium with its tough natural oxide would be pretty immune to molten tin attack but don't have any experience or data to back that up. I know that some of the equipment vendors use titanium in the wave equipment but haven't seen any information of molten tin attack. Dave Guenter Grossmann <[log in to unmask]>@ipc.org> on 01/31/2002 02:15:53 AM Please respond to "TechNet E-Mail Forum." <[log in to unmask]>; Please respond to Guenter Grossmann <[log in to unmask]> Sent by: TechNet <[log in to unmask]> To: [log in to unmask] cc: Subject: [TN] Antw: [TN] Wave Solder/NoPb Question Dave We run trials with folks from ERSA. Actually, due to their knowledge, erosion of the solderpot, the wave-nozzle, and the pump are considerable. However, new equipment seem to be produced lead-free save with coated stainless steel. It seems also as if it is possible to cover the parts in danger with a organic coating (paint) which can be done during the downtime when a service is done. The coating needs a refreshment every one or two years I heard though one line with that coating seems to run now three years in 24 hours shift without problems. What we also looked at are upgrade kits for older equipment. I am right now writing a cost- evaluation. Guenter . EMPA Swiss Federal Institute for Materials Testing and Research Centre for Reliability Dipl. Eng. Guenter Grossmann 8600 Duebendorf Switzerland Phone: xx41 1 823 4279 Fax : xx41 1823 4054 mail: [log in to unmask] --------------------------------------------------------------------------------- Technet Mail List provided as a free service by IPC using LISTSERV 1.8d 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 delivery of Technet send e-mail to [log in to unmask]: SET Technet NOMAIL To receive ONE mailing per day of all the posts: send e-mail to [log in to unmask]: SET Technet Digest Search previous postings at: www.ipc.org > On-Line Resources & Databases > E-mail 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 --------------------------------------------------------------------------------- --------------------------------------------------------------------------------- Technet Mail List provided as a free service by IPC using LISTSERV 1.8d 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 delivery of Technet send e-mail to [log in to unmask]: SET Technet NOMAIL To receive ONE mailing per day of all the posts: send e-mail to [log in to unmask]: SET Technet Digest Search previous postings at: www.ipc.org > On-Line Resources & Databases > E-mail 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 ---------------------------------------------------------------------------------