See also http://www.macprintedcircuits.com/sterling.html Shipley-Ronal also makes an OSP. Their web site says only: "Ronacoat OSP A thin Imidazole-based organic solderability preservative Good for multiple thermal excursions and prolonged shelf life." Timothy Reeves QA Manager/Process Engineer ECD Circuit Board Division 13626 S. Freeman Road Mulino, OR 97042 (800) 228-8198 Fax (503) 829-5482 -----Original Message----- From: Stephen R. Gregory [mailto:[log in to unmask]] Sent: Wednesday, August 02, 2000 6:10 AM Subject: Re: Organic coating In a message dated 08/02/2000 2:07:27 AM Central Daylight Time, [log in to unmask] writes: << Hello everyone, Could you help me out with the following request? I would like to know what kind of protective coating PCB manufacturers are using to cover the bare copper at the final stage of the manufacturing. I know about Entek. Are there others? What is the thickness applied? Would bare board test will be carried out before or after that coating? Where can I find information about the composition of the materials David Banitt President Exsight Ltd 12 Hamada st. Tamar Park, Rehovot POB 4068 Nes Ziona, 70400 Israel Tel +972 8 9466940 Fax +972 8 9466941 Email [log in to unmask] >> Hi David! Go to: http://www.electrochemicals.com/ They make an OSP called Glicoat SMD. There's also a really good technical article that will answer all your questions at: http://www.electrochemicals.com/tech2.htm There's one more at: http://www.electrochemicals.com/carhunt.htm -Steve Gregory- ############################################################## TechNet Mail List provided as a free service by IPC using LISTSERV 1.8c ############################################################## To subscribe/unsubscribe, send a message to [log in to unmask] with following text in the body: To subscribe: SUBSCRIBE TECHNET <your full name> To unsubscribe: SIGNOFF TECHNET ############################################################## Please visit IPC web site (http://www.ipc.org/html/forum.htm) for additional information. If you need assistance - contact Keach Sasamori at [log in to unmask] or 847-509-9700 ext.5315 ##############################################################