TechNetters - some of our assembly techs use MEK to remove flux. I know MEK is potent and probably shouldn't be used for flux removal. What I need is some justification WHY we shouldn't use MEK. We are soldering 22 gauge stranded wire to connector lugs and microswitch turret terminals. This assembly is part of a fuel control for commercial fanjet engines. We use Sb5WS (Tin 94%, Lead 0.2%, Antimony 4-6%) solder and Kester 197 Flux, which is type RMA. Any help is appreciated. Regards, Dave Hipp Woodward Aircraft Engine Systems Electrical Production Engineering (815) 639-6732 FAX (815) 636-6040 ############################################################## 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 ##############################################################