sorry wrong email Karen Tellefsen - Electrical Testing [log in to unmask] 908-791-3069 Re: [TN] Expired Solder Paste Karen Tellefsen to: TechNet 01/16/2012 02:54 PM Sent by: TechNet <[log in to unmask]> Please respond to TechNet E-Mail Forum, Karen Tellefsen thanks Karen Tellefsen - Electrical Testing [log in to unmask] 908-791-3069 Re: [TN] Expired Solder Paste Matthias Mansfeld to: TechNet 01/16/2012 01:37 PM Sent by: TechNet <[log in to unmask]> Please respond to TechNet E-Mail Forum, Matthias Mansfeld On 16 Jan 2012 at 8:17, Stadem, Richard D. wrote: > You can re-certify expired solder paste per J-STD-005 section 6.0. > Used the form attached therein, and follow the appropriate test > methods (also listed at the end of J-STD-005, #2.4.34, 2.4.34.1, > 2.4.34.2, 2.4.34.3 for the viscometer you wish to use. You should > always perform first article testing, monitor your PPMO, etc., and > document all product run with the re-certified paste. For what it's worth, a good solder paste, stored under good conditions may work well even years after expiration. Been there, done that without re-certification (don't worry, no customer projects, just some own DIY-stuff....). For this stuff I use still the same 1kg-jar with old Sn63Pb Alpha RMA390D3K from 2003.... prints well, tacky like new, and visually perfect, shiny solder joints... even 8 years after expiration date. Best regards Matthias Mansfeld -- Matthias Mansfeld Elektronik * Leiterplattenlayout Neithardtstr. 3, 85540 Haar; Tel.: 089/4620 093-7, Fax: -8 Internet: http://www.mansfeld-elektronik.de GPG http://www.mansfeld-elektronik.de/gnupgkey/mansfeld.asc ______________________________________________________________________ This email has been scanned by the Symantec Email Security.cloud service. For more information please contact helpdesk at x2960 or [log in to unmask] ______________________________________________________________________ --------------------------------------------------- Technet Mail List provided as a service by IPC using LISTSERV 16.0 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 For additional information, or contact Keach Sasamori at [log in to unmask] or 847-615-7100 ext.2815 ----------------------------------------------------- ______________________________________________________________________ This email has been scanned by the Symantec Email Security.cloud service. For more information please contact helpdesk at x2960 or [log in to unmask] ______________________________________________________________________ --------------------------------------------------- Technet Mail List provided as a service by IPC using LISTSERV 16.0 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 For additional information, or contact Keach Sasamori at [log in to unmask] or 847-615-7100 ext.2815 ----------------------------------------------------- ______________________________________________________________________ This email has been scanned by the Symantec Email Security.cloud service. For more information please contact helpdesk at x2960 or [log in to unmask] ______________________________________________________________________ --------------------------------------------------- Technet Mail List provided as a service by IPC using LISTSERV 16.0 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 For additional information, or contact Keach Sasamori at [log in to unmask] or 847-615-7100 ext.2815 -----------------------------------------------------