Mark, Good question to ask BEFORE you see the coating coming loose. When we switched to the no-clean flux, we found that the residue had a significant effect on the adhesion of our Humiseal 1B31. We had planned to give all assemblies a final saponified water clean anyway, and this was enough to remove the residue so that no coating problems were encountered. I do understand that other non-acrylic coatings are not as sensitive. Ralph Vaughan Boeing-Atlanta > ---------- > From: Mark Pozorski[SMTP:[log in to unmask]] > Reply To: TechNet E-Mail Forum.;[log in to unmask] > Sent: Friday, July 17, 1998 1:03 PM > To: [log in to unmask] > Subject: [TN] Conformal Coating Adhesion over low res. Fluxes > > Has anyone had experience with conformal coating over a "no-clean" > flux residue? Right now we are using a Humiseal - 1B73 Acrylic, > and using a water soluble flux. We are in the process of going > outside with this assembly and most of the contract houses that we > have talked with use no clean. thanks > > Mark > ADC Telecom. > > ################################################################ > 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's web site (http://www.ipc.org) "On-Line Services" > section 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's web site (http://www.ipc.org) "On-Line Services" section for additional information. For technical support contact Hugo Scaramuzza at [log in to unmask] or 847-509-9700 ext.312 ################################################################