I think the fingerprints you see are the result of the initially invisible activator residues drying out and developing the fingerprint outline within it. Try applying the activator with a toothpick or similar rather than using the spray applicator which throws it everywhere. Hope this helps Bryan Alenia Marconi ----- Original Message ----- From: Tempea, Ioan <[log in to unmask]> To: <[log in to unmask]> Sent: Tuesday, June 01, 1999 7:22 PM Subject: [TN] Fingerprints > Hello, > > Here's a good one! > > The boards one of our touch-up ladies is doing ECOs on started making > fingerprints appear after applying the wire bonding glue. > That is, once the small glue dots are cured, all around them and in the > adjoining areas, a white stuff, like baby powder, is appearing, making wide > bands where the fingerprints show. > > Did anyone else experienced this? I assume it's a reaction between the > perspiration and the glue. Is there any way to fix it, except gloves? > > The glue is Loctite 382. Is it the only troublemaking glue? > > Thanks, Ioan > > ################################################################ > 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 ################################################################ ################################################################ 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 ################################################################