Hi, Here we reuse the paste, but when we reuse it, we add always a minimun of 50% of new fresh paste from the same manufacturer and the same kind of paste. If work very well for us. But older paste is keep only during 3 days in a closed jars. After that, we don't reuse it. We made a lot of low volume product, with very fine apertures and BGA, and it's a no-clean paste we use. Julien Bouchard Process Engineer Matrox Electronic Systems -----Original Message----- From: TechNet [mailto:[log in to unmask]]On Behalf Of Nicolas Ortiz Sent: 15-Feb-01 21:41 To: [log in to unmask] Subject: [TN] Solder paste reuse Solder paste reuse: does anybody has this practice? Obviously, my solder paste supplier does not recommend it. Nicolas Ortiz Process Engineering Group Leader Conexant Systems ---------------------------------------------------------------------------- ----- 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 the following message: SET Technet NOMAIL Search previous postings at: www.ipc.org > On-Line Resources & Databases > E-mail 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 the following message: SET Technet NOMAIL Search previous postings at: www.ipc.org > On-Line Resources & Databases > E-mail 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 ---------------------------------------------------------------------------------