Electronics Forum | Tue Feb 14 14:26:13 EST 2006 | Chunks
Well, you don't want your paste to spoil! It'll give it a bad aftertaste. Actually, we refrig our paste mainly cause our stock room gets rather on the toasty side. Jars left un-friged will cause the metals to sink and leave a puddle of flux on top
Electronics Forum | Fri Nov 05 12:38:07 EST 1999 | Rich Cary
We are looking for some sealed (pressurized?) flux tanks with low qty. warning for use with our Tamura spray flux machines. I have heard that a company named "Binks" has made similar tanks for other companies, but when I search on the net for them I
Electronics Forum | Sat Jun 15 22:39:05 EDT 2002 | edahi
well we can't paste the flip chip on its substrate because we are using flux...because this bare die yet...and the surface of the die flipped might be contaminated...also after chip attach and reflow the die is to be underfilled and if the die is pas
Electronics Forum | Fri Dec 17 14:13:18 EST 2004 | Claude_Couture
I have done this several times in order to save my butt: adding liquid flux in a jar of not so fresh paste, stirring it slow for 2-3 minutes, to make it usable. Of course, use no-clean flux for no clean paste, etc. During one production slow-down,
Electronics Forum | Sun Jul 17 23:45:04 EDT 2005 | adlsmt
Without knowing how much you use or what you use it for or what brand and which type, hard to say. In general, follow the Manufacturers recomendations. If you are doing precision work then use cartridges and let them warm up to room temp for a few ho
Electronics Forum | Wed Mar 07 08:37:29 EST 2007 | davef
First, don't put solder paste in a wave solder pot, the 50% by volume of organics and volatiles will gas off in an astonishing amount of fume, leaving a dismaying mess of spent resin and molten plastic in your pot. Second, when you say, "Paste that
Electronics Forum | Thu Feb 28 14:50:02 EST 2008 | tonyamenson
Let me clarify we throw out used paste after a week not the whole jar. Jars get used up every other day or so. We don't really have a procedure for used paste on the do's and don'ts so I'm in the process of creating one to avoid people adding flux t
Electronics Forum | Wed Oct 01 19:23:52 EDT 2008 | paligora
It depends on the usage , if it is regular and steady, only order when needed , we only order 2 jars when the last one is taken out of the fridge.One jar would last us about 2-3 weeks and it stays on room temperature. Ofcourse , you need a realiable
Electronics Forum | Wed Mar 14 16:10:38 EDT 2012 | cobham1
We need to develop a method of putting solder paste on a stencil then putting the unused part back into the refrig. Reason we are thinking of this method is because we only run circuit boards twice a week. I dont want to waste entire jar of paste bec
Electronics Forum | Thu May 10 22:16:51 EDT 2012 | davef
It's bad practice to remix used solder paste with new solder paste in the jar. Further, some would argue that it's bad practice to reuse solder paste period. If economics force you to reuse solder paste, store it for reuse in an empty jar. When rea
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