Alberto, I think that there should be no problem with 6 months. It depends on the temperature and refridgeration is assumed for the 6 month estimate. Partial use, can leave hardening paste in the needle and that could make the needle unusable but the paste would be perfectly usable. If you have any problem with a stopped up needle let me know and I'll be happy to send you a couple of replacements.
Are the guys in Italy exerimenting with SMT parts. You guys are definately on the cutting edge of some of the hardware and software. If you are going to have a club meeting and would like to have some paste as a drawing prize or something like a builders group I'd be happy to send you 5 syringes of paste, gratis. Please let me know. And thank you for great software. You have created a great tool and the hobby really appreciates your efforts. Cash, KD5SSJ ----- Original Message ----- From: "i2phd" <[EMAIL PROTECTED]> To: <[email protected]> Sent: Monday, October 15, 2007 5:19 PM Subject: [soft_radio] Re: Hot Air SMT Soldering method and AmateurLogic.TV > Cash, > > how long is the shelf life of a syringe of solder paste, especially > after having used part of it ? For a production environment that > would not be a problem, but for us radioamateurs with an occasional > use of it, it is important to know on how many days or weeks we can > count on it being still usable. Thanks. > > 73 Alberto I2PHD > ------------------------------------ > > --- In [email protected], "KD5SSJ" <[EMAIL PROTECTED]> wrote: >> >> I recently discovered a ham radio monthly video magazine, > AmateurLogic.TV, which is pretty good and then discovered that I had > been mentioned by name in one segment > http://transmitter.amateurlogic.tv/video/amlogic16.wmv and a segment > that prominently features my hot air soldering method and gives > attribution http://transmitter.amateurlogic.tv/video/amlogic15.wmv > starting at about 9:30 minutes and running 10 minutes or so. The > segment demonstrates the building a Softrock 6.0 using hot air method > and solder paste. At the end of the segment George, W5JDX, trys to > demonstrate resoldering a part to a disk drive board and inadvertantly > demonstrates the self alignment property of the SMT reflow soldering, > although he thought it was a mistake and turns it into an example of > better left alone. >> >> I can supply the solder paste > www.zianet.com/erg/ShopSolderPaste.html and have about 300 satisfied > customers that have started adopting this method. >> >> >> Cash Olsen KD5SSJ >> >> Kits to build Scotty's Spectrum Analyzer http://www.zianet.com/erg >> Scotty's Spectrum Analyzer website http://www.cpu-net.com/host/wsprowls >> Sam Wetterlin's website http://www.wetterlin.org/sam/ >> Yahoo Builders Group http://groups.yahoo.com/group/spectrumanalyzer/ >> > > > > > > Yahoo! Groups Links > > > > > > > -- > No virus found in this incoming message. > Checked by AVG Free Edition. > Version: 7.5.488 / Virus Database: 269.14.11/1071 - Release Date: > 10/15/2007 6:48 AM > >
