Good Morning, and Happy Monday.

A couple of questions for anyone:

We have a lighting application where we are getting light reflection off two specific solder joints (we're so lucky to still use Sn63Pb37 they are just TOO shiny!), so I am looking for a method to cover those joints with a black (or dark gray) sealant.  This would need to be a low out-gassing material.  Does anyone know of any such material?  Is there such a thing as black pigmented conformal coating?

The second question would be for this same product.  I also have a need to seal around the base of some LEDs to prevent moisture ingress to the bottom only terminations.  Would perimeter sealing be sufficient?  How does one determine when they need to underfill vs perimeter seal?

Thanks!

Kevin Glidden

______________________________________________________________________
This email has been scanned by the MessageLabs Email Security System.
For more information please contact helpdesk at x2960 or [log in to unmask] 
______________________________________________________________________

---------------------------------------------------
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
-----------------------------------------------------