John: When wavesoldering......... We typically use Alpha 857 water soluble flux (IPA thinner) in a foam fluxer for our commercial (non-military) boards. On military programs that need to be compliant with J-Std-001A or B, class 3, we use Kester HF-1189A. We qualified this material IAW J-Std-001A, Appendix D, Level 2. We have found that a localized manual spray of the flux on the bottom of the board gives us excellent results. We've also used this process on NASA programs requiring compliance with NHB5300.3A-2. On these programs, we simply request approval to use this flux from the procuring agency. Bill Kasprzak Moog Inc. ############################################################## 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. If you need assistance - contact Gayatri Sardeshpande at [log in to unmask] or 847-509-9700 ext.5365 ##############################################################