No, but you can say you used it by oxidant. Dewey -----Original Message----- From: TechNet [mailto:[log in to unmask]] On Behalf Of John Burke Sent: Wednesday, October 08, 2008 1:10 PM To: [log in to unmask] Subject: Re: [TN] Controlled RH% Versus Screenprinting Results Increased RH in the printer the engineers say causes rust; and so I guess their argument is that an increase in RH in the workshop and hence the printer will er hmmmm....um "avoid rust????????" I would ask the engineers to verify that claim, and also ascertain whether the printer is actually made of anything that is in fact rustable........new word?? John Burke (408) 515 4992 -----Original Message----- From: TechNet [mailto:[log in to unmask]] On Behalf Of Leland Woodall Sent: Wednesday, October 08, 2008 1:00 PM To: [log in to unmask] Subject: Re: [TN] Controlled RH% Versus Screenprinting Results I haven't noticed an escalation of rejects at our printing process due to seasonal changes, either in temp or RH. Our facility maintains a temp of 69 to 73 degree, and each of our printers has its own temperature control unit. My process engineers tell me that printer manufacturers don't offer RH control units for fear of inducing rust, so the 500K I mentioned below is to outfit the entire electronics manufacturing area. I'm well aware of the benefits of ESD in conjunction with increased humidity. I assume, however, that increased humidity would have an opposite and detrimental effect with MSDs. Have any studies been conducted with printing at varied RH settings of which you might be aware? I haven't been able to find anything on my own. Thanks again, Leland -----Original Message----- From: TechNet [mailto:[log in to unmask]] On Behalf Of Leland Woodall Sent: Wednesday, October 08, 2008 1:11 PM To: [log in to unmask] Subject: [TN] Controlled RH% Versus Screenprinting Results Technetters, A couple of folks in our firm are investigating several different brands of humidification systems for possible installation at our facility. These things aren't cheap, and can run close to 500K. We see seasonal variation within our building of 15-20% in the winter months, and may go as high as 55-60% in the summer. Our paste manufacturer states their optimum printing parameter to be 50-60% RH. Our process engineers think we'll see a vast improvement in our screenprinting process if we pursue this project. I'm trying to understand if this is really going to reap the rewards as anticipated. Does anyone have any prior experience(s) they might share? Thanks in advance for your help! Leland --------------------------------------------------- Technet Mail List provided as a service by IPC using LISTSERV 15.0 To unsubscribe, send a message to [log in to unmask] with following text in the BODY (NOT the subject field): SIGNOFF Technet To temporarily halt or (re-start) delivery of Technet send e-mail to [log in to unmask]: SET Technet NOMAIL or (MAIL) To receive ONE mailing per day of all the posts: send e-mail to [log in to unmask]: SET Technet Digest Search the archives of previous posts at: http://listserv.ipc.org/archives Please visit IPC web site http://www.ipc.org/contentpage.asp?Pageid=4.3.16 for additional information, or contact Keach Sasamori at [log in to unmask] or 847-615-7100 ext.2815 ----------------------------------------------------- --------------------------------------------------- Technet Mail List provided as a service by IPC using LISTSERV 15.0 To unsubscribe, send a message to [log in to unmask] with following text in the BODY (NOT the subject field): SIGNOFF Technet To temporarily halt or (re-start) delivery of Technet send e-mail to [log in to unmask]: SET Technet NOMAIL or (MAIL) To receive ONE mailing per day of all the posts: send e-mail to [log in to unmask]: SET Technet Digest Search the archives of previous posts at: http://listserv.ipc.org/archives Please visit IPC web site http://www.ipc.org/contentpage.asp?Pageid=4.3.16 for additional information, or contact Keach Sasamori at [log in to unmask] or 847-615-7100 ext.2815 ----------------------------------------------------- --------------------------------------------------- Technet Mail List provided as a service by IPC using LISTSERV 15.0 To unsubscribe, send a message to [log in to unmask] with following text in the BODY (NOT the subject field): SIGNOFF Technet To temporarily halt or (re-start) delivery of Technet send e-mail to [log in to unmask]: SET Technet NOMAIL or (MAIL) To receive ONE mailing per day of all the posts: send e-mail to [log in to unmask]: SET Technet Digest Search the archives of previous posts at: http://listserv.ipc.org/archives Please visit IPC web site http://www.ipc.org/contentpage.asp?Pageid=4.3.16 for additional information, or contact Keach Sasamori at [log in to unmask] or 847-615-7100 ext.2815 ----------------------------------------------------- __________ NOD32 3475 (20080926) Information __________ This message was checked by NOD32 antivirus system. http://www.eset.com --------------------------------------------------- Technet Mail List provided as a service by IPC using LISTSERV 15.0 To unsubscribe, send a message to [log in to unmask] with following text in the BODY (NOT the subject field): SIGNOFF Technet To temporarily halt or (re-start) delivery of Technet send e-mail to [log in to unmask]: SET Technet NOMAIL or (MAIL) To receive ONE mailing per day of all the posts: send e-mail to [log in to unmask]: SET Technet Digest Search the archives of previous posts at: http://listserv.ipc.org/archives Please visit IPC web site http://www.ipc.org/contentpage.asp?Pageid=4.3.16 for additional information, or contact Keach Sasamori at [log in to unmask] or 847-615-7100 ext.2815 ----------------------------------------------------- --------------------------------------------------- Technet Mail List provided as a service by IPC using LISTSERV 15.0 To unsubscribe, send a message to [log in to unmask] with following text in the BODY (NOT the subject field): SIGNOFF Technet To temporarily halt or (re-start) delivery of Technet send e-mail to [log in to unmask]: SET Technet NOMAIL or (MAIL) To receive ONE mailing per day of all the posts: send e-mail to [log in to unmask]: SET Technet Digest Search the archives of previous posts at: http://listserv.ipc.org/archives Please visit IPC web site http://www.ipc.org/contentpage.asp?Pageid=4.3.16 for additional information, or contact Keach Sasamori at [log in to unmask] or 847-615-7100 ext.2815 -----------------------------------------------------