Sorry for asking, but why in the world would you want unfused tin/lead on what I am presuming is a copper conductor. The tin will migrate into the copper forming a tin-copper intermetallic layer very quickly; the solderability of such a surface will be very poor. You can plate tin-nickel or solder over nickel and have much better results, both for solderability retention and for acting as a "lubricant" in the case of tin-nickel. Perhaps you could elaborate as to what you are trying to acheive. Regards, Fred J. >>> Aric J Parr <[log in to unmask]> 11/05/97 01:50pm >>> I am trying to find a specification for plating tin/lead on some parts. I do not want it fused. I haven't found an IPC spec for this. Can anyone help me? Thanks, Aric Parr ############################################################## TechNet Mail List provided as a free service by IPC using LISTSERV 1.8c ############################################################## To subscribe/unsubscribe, send a message to [log in to unmask] with following text in the body: To subscribe: SUBSCRIBE TECHNET <your full name> To unsubscribe: SIGNOFF TECHNET ############################################################## Please visit IPC web site (http://www.ipc.org/html/forum.htm) for additional information. For the technical support contact Dmitriy Sklyar at [log in to unmask] or 847-509-9700 ext.311 ############################################################## ############################################################## TechNet Mail List provided as a free service by IPC using LISTSERV 1.8c ############################################################## To subscribe/unsubscribe, send a message to [log in to unmask] with following text in the body: To subscribe: SUBSCRIBE TECHNET <your full name> To unsubscribe: SIGNOFF TECHNET ############################################################## Please visit IPC web site (http://www.ipc.org/html/forum.htm) for additional information. For the technical support contact Dmitriy Sklyar at [log in to unmask] or 847-509-9700 ext.311 ##############################################################