Go to your distributor's website. Sometimes it is a lot easier to get the material specs and MSDS there. For example, I use Ellsworth's website to get the product information if I cannot find it at the vendor's site. -----Original Message----- From: TechNet [mailto:[log in to unmask]] On Behalf Of Genny Gibbard Sent: Monday, March 09, 2009 11:19 AM To: [log in to unmask] Subject: Re: [TN] Coatings, epoxies, etc crash course We use that Armstrong material already. Armstrong is from RTG (Resin Technology Group). I have had a great deal of difficulty finding out any detailed information about RTG and Armstrong. Resintechgroup.com redirects to Henkelna.com. I find Henkel's site to be fairly useless to get any meaningful detailed technical information. It is a 2-part epoxy. For PCB repairs it works great. But it is not something that can be used for quick in-line touch-ups. I am looking for a 1-part solution for quick touch-ups, that will hold up. I am also looking for general educational sources on electronic related materials and chemicals. Maybe that is a lot to ask, but how do you know when to look for an epoxy? When do you need an acrylic? When should you consider a silicone based material? -----Original Message----- From: TechNet [mailto:[log in to unmask]] On Behalf Of Whittaker, Dewey (EHCOE) Sent: March 9, 2009 10:03 AM To: [log in to unmask] Subject: Re: [TN] Coatings, epoxies, etc crash course Richard, I agree with you on the Eccobond and Resiweld having qualified them a long time ago, but I am not aware of Armstrong C7. If you say it does a bang-up job, I would be concerned since it's 3 levels higher than C4. Seriously though does it pass for Aerospace work (outgassing, corrosion, compatibility issues)? Let me know, as I don't want to appear as stuck in the past. Dewey -----Original Message----- From: TechNet [mailto:[log in to unmask]] On Behalf Of Stadem, Richard D. Sent: Monday, March 09, 2009 5:01 AM To: [log in to unmask] Subject: Re: [TN] Coatings, epoxies, etc crash course Armstrong C7 with Hardener "W". Resiweld Eccobond These all work well for sealing board cuts or damaged FR-4, but I like the Armstrong best. -----Original Message----- From: TechNet [mailto:[log in to unmask]] On Behalf Of Genny Gibbard Sent: Friday, March 06, 2009 10:35 AM To: [log in to unmask] Subject: [TN] Coatings, epoxies, etc crash course Hello all, I do a lot of component and material sourcing, crossing, and spec'ing. Probably the area I struggle with the most is the materials, like epoxies for board repairs, or adhesives, or sealants, cleaners, etc etc,...I did electrical engineering, not chemical. Is there any good resource place to get a handle on when you want an acrylic versus an epoxy, or silicone, or ... basic properties, what environment they are needed for, etc. A specific sourcing question I have right now - for challenging board repairs we use specially trained operators in a rework cell that use a 2-part epoxy to repair FR4. One product has a track cut, that usually causes weave exposure, that happens on every board on the line to allow for different configurations, and they want a way to protect it adequately with a 1-part quick curing material without sending it to the rework cell. We've tried those conformal coat pens, and they can be washed right off the board. Any suggestions? Genny --------------------------------------------------- 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 ----------------------------------------------------- --------------------------------------------------- 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 -----------------------------------------------------