Electronics Forum | Fri Oct 07 15:49:58 EDT 2005 | Amol
Hi, Can anyone suggest what solvents are the best for manual stencil cleaning?? we are currently using alcohol wipes, but the fine pitch apertures still have solder paste stuck in between them. We should ideallyhave a stencil cleaner, but until that
Electronics Forum | Mon Nov 07 08:27:56 EST 2005 | chunks
It could be you are drying out your solder paste. Most flux formulations are alcohol based and after a few hours can dry out. This can can lead to dewetting and solder balling as well. Especially if you do not homeplate your R's and C's. A simple
Electronics Forum | Fri Sep 22 04:48:14 EDT 2006 | greg york
Apply the bare minumum amount of VOC free typically 50% less than alcohol fluxes. By doing this you can keep the same top board temperature as alcohol, its only when people over flux do you need to boost up the preheater to volatise of the water. NEV
Electronics Forum | Tue Jan 15 13:16:25 EST 2008 | ck_the_flip
Yes, the previous "non-balling" flux was alcohol based, but very weak activity. We found it was worth the switch to water-based, to get prettier solder joints - but...at the expense of having to "brush off" solder balls on a couple of assemblies wit
Electronics Forum | Fri May 14 12:44:26 EDT 2010 | padawanlinuxero
Hi Since we are a small company with a small smt line, we did not have problems with our stencils because they are small and could clean them with Alcohol and wipes, but now we are growing, and now I am having a 20X20 stencils frames to deal with,
Electronics Forum | Mon Feb 11 21:57:24 EST 2013 | jeremymek
the reason for not using alcohol in a stencil cleaning fluid is that while alcohol is great for removing liquid fluxes its not good for the solids in the flux it tends to harden them more and make a tacky surface on the stencil. I have seen apertures
Electronics Forum | Sat Aug 26 09:40:27 EDT 2017 | v037022
Dear, My current method incluce steps below: 1. take out all screw 2. Put them into alcohol 3. Clean it with bemcot paper which wet by alcohol 4. Dry it by air gun 5. Checking by Dino camera. It took so much time. Now i want to do it automatic to red
Electronics Forum | Wed May 23 15:11:21 EDT 2018 | jacobidiego
Hi experts, I asked our chinese board manufacturer about their recommended procedure to clean miss-printing. The answer was that they use Absolut Alcohol while use IPA currently and we are moving to a water based cleaning agent with ultrasound. Th
Electronics Forum | Tue Oct 18 10:51:30 EDT 2022 | winston_one
Not only alcohol, there is a special liquids for cleaning of stencils in printers, for example ZESTRON SW. Main is to not confuse it with a liquids for stencil cleaning in cleaning machine. Last one really can damage some parts of machine, and mostly
Electronics Forum | Tue May 25 11:40:23 EDT 1999 | Steve Gregory
Just a note about cleaning stencils with a mixture of alcohol and water, especially if you're using no clean paste, it's really not recommended. Don't take my word for it, you can check with Alpha or most any other solderpaste vendor. What will actu
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