Electronics Forum | Mon Nov 20 21:02:46 EST 2000 | Michael Psrker
First question I have for you is: Are you assuming that standard precautions are in place at your facility to minimize moisture content i.e. air- deionizers, vacuum sealed packaging, humidity control in storage and manufacturing? You do not mention
Electronics Forum | Wed Aug 05 14:18:47 EDT 2020 | dwl
Anything with metal in it can be recycled; PCBs, wire, lead trimmings, used solder paste, etc. There are companies that specialize in this sort of waste. Typically they will provide you with containers and once you have enough waste, they will come p
Electronics Forum | Fri Dec 16 04:41:30 EST 2005 | tk380514
A day and half is a life time for our solder paste, Almit V14L... but then we dont have in-line solder paste printers, we have micro BGA stencil that wont work with anything but new solder paste, 0.8mm pitch and pad size is 0.3mm, stencil thickness
Electronics Forum | Tue Oct 12 04:33:15 EDT 1999 | Brian
| | | We have three buckets filled with leftover solder paste from our screen printing process. Kester has informed me that they no longer take paste, but only dross and pot dumpings. Does anyone know if there's someplace I can recycle this, or am
Electronics Forum | Fri Jul 05 18:01:57 EDT 2024 | cyber_wolf
The people that like you to throw paste away every use are the paste manufacturers and people that don't understand. If your shop environment is clean and you have temperature and humidity control, I concur that there is nothing wrong with re-using
Electronics Forum | Thu Jul 18 15:03:54 EDT 2024 | SMTA-64387939
Reusing paste that has been on the stencil for long periods of time can be a little tricky. Depends on the formula, environment that its used in, quality issues, technology being printed. Throughout the shift, new paste needs be added as its bein
Electronics Forum | Tue Oct 12 04:26:30 EDT 1999 | Brian
| We have three buckets filled with leftover solder paste from our screen printing process. Kester has informed me that they no longer take paste, but only dross and pot dumpings. Does anyone know if there's someplace I can recycle this, or am I go
Electronics Forum | Wed Oct 13 13:47:02 EDT 1999 | John Thorup
Jeff In my experiance the main problem is the flux content of the paste (up to 50%). throwing it in the wave pot results in a big stickey ring around the pot, a lot of smoke and, as Brian says, a lot of dross. A fire is not that unlikely! I tried
Electronics Forum | Sat Apr 04 17:11:29 EST 1998 | Steve Gregory
| Can anyone help with advice on the possibility | of "rejuvinating" aged solder paste | for SMT applications. | Thanks! Peter, I wouldn't even try...even if you had all the different chemicals that you needed to do it properly, the formula's f
Electronics Forum | Tue Jul 20 10:08:30 EDT 1999 | Wolfgang Busko
| | I recently switched from solder paste in 500 gram jars to 500 gram tubes. I did this to try to limit the time the paste is exposed to the room environment. But we have a need to clean the stencil every 4 - 5 boards which means taking the bulk pas
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