I basically run the glue through the oven at the same temperature profile as reflow. I just knocked down the zones (5 in all) a few degrees each. So far I have not had any problems (that I know of, sometime the operators forget to fill out the inspection sheets so I am not always aware that there are problems). We run the glue side then flip the PCB's and run the paste side. So far no parts have fallen off, except for a couple of times when the PCB's were run across the edge of a desk by accident (don't ask why) but otherwise they stay in place. I am running AIM glue and paste in a no clean operation. Hope this helps. Ryan Date sent: Wed, 7 Apr 1999 14:28:04 -0400 Send reply to: "TechNet E-Mail Forum." <[log in to unmask]>, "Tempea, Ioan" <[log in to unmask]> From: "Tempea, Ioan" <[log in to unmask]> Subject: Re: [TN] Can adhesive go thru reflow soldering? To: [log in to unmask] > Davis, > > I made some tests as follows: I used adhesive and solder paste for the > components on the solder side of double sided assemblies. > So, after printing the solder cream the adhesive has been dispensed. > Naturally, the board is reflowed, with the adhesive uncured, the curing > occurs at a certain stage of the reflowing. > Of course, the curing temperature of the glue is about 150C and the > reflowing cycle was exposing the board to 280C. > I couldn't find any problem with the adhesive after waving the boards, so > the glue didn't crack during the exposure to 280C or the tensions during the > wave soldering. > > So the 150C for 90-120 sec is simply the curing cycle, but after curing the > adhesive can suffer reflow and waving. I'm pretty sure of that. > > Regards, Ioan > > > -----Original Message----- > > From: Davis Yang [SMTP:[log in to unmask]] > > Sent: Wednesday, April 07, 1999 12:06 AM > > To: [log in to unmask] > > Subject: [TN] Can adhesive go thru reflow soldering? > > > > Dear Sir, > > We have to put adhesive(glue) on PCBA before reflow. the adhesive > > we are using is LOCTITE 3609. but the spec for the adhesive is 150C > > degree with 90 - 120 Seconds. We want to know if any issue for the > > adhesive to go thru reflow profile? we are worrying about potential > > reliability problem. and the supplier can't give us the answer. > > please give any advice on the question. > > thanks a lot! > > Davis > > > > ################################################################ > > 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 inform ation. > For technical support contact Hugo Scaramuzza at [log in to unmask] or 847-509-9700 ext.312 > ################################################################ > ----------------------- Ryan Chase Manufacturing Engineer GE Harris 403-214-4502 Fax 403-287-3107 [log in to unmask] ################################################################ 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 ################################################################