Electronics Forum | Thu Dec 10 12:57:25 EST 2009 | scottp
We've used mostly cartridges for many years and I only saw separation once when a particular paste supplier had a problem. With cartridges it's just thaw and use - no mixing. We have some sites that use jars along with mixers and I've never been co
Electronics Forum | Fri Apr 04 08:49:45 EDT 2008 | ck_the_flip
Define "expired" though... 1 week? 6 weeks? 1 month? 6 months? Unrefrigerated life is generally 30 days. If paste has been stored refrigerated at manufacturer recommended temperatures, what would you guys do, like say, if you owned your own shop
Electronics Forum | Mon Feb 13 09:18:06 EST 2006 | sumxp
Certain paste mfg specify 6 hours paste thawing time to normalize the temperature. I am using solder paste softerner to spin the paste taken out from fridge for 9 minutes and measure the paste temperature in jar.It is around 26'c(same as the ambient
Electronics Forum | Thu Dec 10 09:06:47 EST 2009 | stepheniii
Just how cold do you store your paste? And what are your solder paste reps like? Here they fall over each other giving support for their paste. And have you seen the problem with flux separation or have you only heard about it?
Electronics Forum | Tue Dec 08 08:52:42 EST 2009 | cunningham
How do people prepare there solder paste for screen print? We currently remove them from the fridge and mix them in a 500g solder paste tub mixer to mix the flux and paste together we waste to much paste at the moment as we only use the tub for 1
Electronics Forum | Tue Dec 08 11:55:28 EST 2009 | GSx
here some of them: http://www.mvent.com.ph/malcom/sps1.htm http://www.bikudo.com/product_search/details/116079/solder_paste_mixer.html http://www.japanunix.co.jp/ju_en/products/UM-103.html http://www.fancort.com/robotic/_solder_paste_mixer.html
Electronics Forum | Fri Jul 29 10:03:02 EDT 2011 | blnorman
At a previous location we used the Semco cartridges. Occasionally the operator would have to scrape down the stencil and knead the paste back in. That would keep the paste on the edges from drying out. It was just standard procedure.