Regarding cleaning of RMA flux: We use Axeral 2200 for hand cleaning (followed by IPA rinse) and EC7 and EC7R for batch-type semi-aqueous cleaning in an ECD 6307 "dishwasher" (use specific gravity as an indication of flux loading) with IPA/water rise (use conductivity as an indication of ionic cleanliness). We also use an Omegameter for final product cleanliness verification. All with very good results. Pat Hogue Materials and Processes Engineering Honeywell Satellite Systems Operation Glendale, AZ ---------- From: Steven H Axdal[SMTP:[log in to unmask]] Reply To: TechNet E-Mail Forum.;Steven H Axdal Sent: Monday, June 01, 1998 7:02 AM To: [log in to unmask] Subject: [TN] How to Clean RMA Flux? I'm looking for pointers to information on how to clean RMA flux from circuit boards. We're doing contract assembly and the design currently specifies RMA flux. (Build specs are basically WS-6536 and Mil-Std-2000, NOT 2000A or J-Std) We've got an in-line aqueous system (using Armakleen detergents) in place, but it's removing markings from diodes (and the markings are required to be readable). We've also been using a solvent vapor system (AK-225), but it's attacking the adhesive bonding heatsinks to the boards. Anybody care to make suggestions for RMA flux cleaning approaches or pointers to likely candidates for a)information or b)product representatives? Thanks Steven Axdal General Dynamics Information Systems [log in to unmask] 612-853-3830 ################################################################ TechNet E-Mail Forum 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://jefry.ipc.org/forum.htm) for additional information. For technical support contact Hugo Scaramuzza at [log in to unmask] or 847-509-9700 ext.312 ################################################################ ################################################################ TechNet E-Mail Forum 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://jefry.ipc.org/forum.htm) for additional information. For technical support contact Hugo Scaramuzza at [log in to unmask] or 847-509-9700 ext.312 ################################################################