There are a few new coating out there, Dexter and Omnikron to name the two that I am familiar with and they bear no resemblance to the old type dip and coat processes from the past. Both exhibit excellent properties and are touting a year shelf life. See PCFAB (Dec. 98) for Omnikron. -----Original Message----- From: [log in to unmask] [SMTP:[log in to unmask]] Sent: Tuesday, January 05, 1999 2:39 PM To: [log in to unmask] Subject: [TN] immersion white tin finish Seth, You're hot! What are you doing? I mean, you're doing the most advanced stuff (coming around again) existing. It's like you're putting together a wish list. You will get some interesting replies to your question and one I have asked before. Recently, I have received some "white" boards. My expectations did not concern "whiskering" but oxidation. With immersion (very thin) coatings, usually there is no problem with metallic growth or stray structures. Tin simply strikes fear because of what it is and how readily/rapidly it oxidises. I only, still, question shelf life and solderability. Please advise us all concerning your other findings, Earl Moon ################################################################ TechNet E-Mail Forum 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's web site (http://www.ipc.org) "On-Line Services" section for additional information. For technical support contact Hugo Scaramuzza at [log in to unmask] or 847-509-9700 ext.312 ################################################################ ################################################################ TechNet E-Mail Forum 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's web site (http://www.ipc.org) "On-Line Services" section for additional information. For technical support contact Hugo Scaramuzza at [log in to unmask] or 847-509-9700 ext.312 ################################################################