are you sure it is non-corrosive? put on bare copper with drop of water at edge of the RTV droplets and wait for few days....Let me know what happened.. jk -----Original Message----- From: TechNet [mailto:[log in to unmask]]On Behalf Of Roach, David Sent: Monday, December 20, 2004 11:41 AM To: [log in to unmask] Subject: Re: [TN] RTV potting materials Thanks, Phil. What we currently use is not acetic acid based, and supposed to be safe (non-corrosive) for circuit boards. It still has an odor, though, due to the alcohol base. I will check into the Dow 737. Dave Roach Trane GCC 4833 White Bear Parkway St. Paul, Minnesota 55110 651-407-4294 -----Original Message----- From: Phil Nutting [mailto:[log in to unmask]] Sent: Monday, December 20, 2004 10:25 AM To: TechNet E-Mail Forum; Roach, David Subject: RE: [TN] RTV potting materials Dave, We currently use Dow Corning 737 Neutral cure RTV for bonding many large components, capacitors, inductors, etc., to circuit boards and chassis parts. The acetal cure of many RTVs stinks, but more importantly is the fact that it creates acetic acid as it cures which can etch bare copper... that could be bad. The neutral cure stuff has little of no discernable odor. I'm sure GE makes a competitive product. Phil -----Original Message----- From: TechNet [mailto:[log in to unmask]] On Behalf Of Roach, David Sent: Monday, December 20, 2004 11:15 AM To: [log in to unmask] Subject: Re: [TN] RTV potting materials We currently use an alcohol-based RTV silicone (Dow 3145) to adhere some tall through-hole capacitors to the PCB to improve vibration resistance. Is anyone aware of any water-based RTV silicones that are PCB firendly that would work as well and not have the odor while curing? Dave Roach Trane Controls St. Paul, Minnesota --------------------------------------------------- Technet Mail List provided as a service by IPC using LISTSERV 1.8e 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 1.8e 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 1.8e 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 -----------------------------------------------------