I have been informed that several fine coats rather than one thicker coat improves adhesion, however, I have no practical experience of it to back this up. Might be worth a try, but it will increase your process time. And yes, cleanliness is an issue. i suggest you approach your supplier.........Bridget > -----Original Message----- > From: Paul Stolar [SMTP:[log in to unmask]] > Sent: 12 October 1998 15:09 > To: [log in to unmask] > Subject: [TN] Confomal coating adhesion > > *** WARNING *** > > This mail has originated outside your organization, > either from an external partner or the Global Internet. > Keep this in mind if you answer this message. > > > Does anyone have any good experience at improving > conformal coating > adhesion to plastic packaging? > > Is it a cleanliness issue, or is it inherent in materials? > > ############################################################### > # > 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 ################################################################