Earl: The current OSP coatings are not based on any type of flux chemistry such as the old Sealbrite. That was a rosin based product from London Chemical Co. The OSP forms an organo-metallic complex on the surface of the copper to protect it. It does not aid or contribute to the fluxing operation. The coating is actually broken down by the flux allowing you to solder to non oxidized copper. Regards Michael Barmuta Staff Engineer Fluke Corp. Everett WA 425-446-6076 -----Original Message----- From: Earl Moon [mailto:[log in to unmask]] Sent: Thursday, April 18, 2002 12:02 PM To: [log in to unmask] Subject: Re: [TN] OSP Jana, I appreciate you are not into fluxes and the answer concerning OSP composition. I'm sure the OSP chemistry is compatible - no kidding - with current flux chemistries or how could it work When we used "SealBrite" it was essentiall a flux. Does someone out there know the answer to my question concerning flux composition in terms of Jana's answer? Earl ---------------------------------------------------------------------------- ----- Technet Mail List provided as a free service by IPC using LISTSERV 1.8d 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 delivery of Technet send e-mail to [log in to unmask]: SET Technet NOMAIL 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/html/forum.htm for additional information, or contact Keach Sasamori at [log in to unmask] or 847-509-9700 ext.5315 ---------------------------------------------------------------------------- ----- --------------------------------------------------------------------------------- Technet Mail List provided as a free service by IPC using LISTSERV 1.8d 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 delivery of Technet send e-mail to [log in to unmask]: SET Technet NOMAIL 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/html/forum.htm for additional information, or contact Keach Sasamori at [log in to unmask] or 847-509-9700 ext.5315 ---------------------------------------------------------------------------------