Electronics Forum | Fri Mar 26 07:47:49 EST 2004 | jdumont
No clean and RMA, both R0L0. Is it true that RMA type pastes are easier to clean than no-clean?
Electronics Forum | Fri Mar 26 11:13:04 EST 2004 | Mike Konrad
jdomont, No-cleans are more difficult to clean than RMA�s. Even though no-cleans have a lower solids content than RMA�s, reflow and soldering profiles are normally more severe than those used for RMA. It is interesting to note that our most of our
Electronics Forum | Tue Jul 10 18:03:49 EDT 2001 | pzohbon
Does anyone have a recommendation for a cleaning solution used in an ultrasonic cleaner for cleaning RMA solder paste off stencils and adhesive off pcb boards. I am going to be evaluating Armakleen 2001, Zestron Vigon SC 200, and Aqueous Technologies
Electronics Forum | Thu Feb 10 13:54:22 EST 2000 | Kris W
Hi All, We are in the process of converting from RMA solder paste to no-clean process across the shop. This will allow me to carry my semi-aqueous cleaner out of the building and set it ablaze using the terpenes as the fire water. Then I can go ab
Electronics Forum | Mon Aug 31 16:55:48 EDT 2020 | kylehunter
> I would question your motive "There's no way > that I feel comfortable shipping boards after a > selective without cleaning them, the amount of > flux on the board is significantly more than from > SMT". 1. Who said th
Electronics Forum | Tue Jul 24 08:09:24 EDT 2001 | tommiller
I�m using Zestron's Vigon sc 200 in our ultrasonic cleaner. It works great for cleaning our adhevises and pastes (RMA and no clean) from stencils and misprinted PCBs. We used to use a saponifier which did a terrible cleaning job and was a real pain t
Electronics Forum | Wed Jul 11 20:20:44 EDT 2001 | davef
Your selections are good, assuming you are talking about cleaning raw paste, rather than reflowed RMA. Maybe add Multicore Prozone, JNJ Aquasonic, and Kyzen Aquanox.
Electronics Forum | Wed May 21 19:43:05 EDT 2003 | billschreiber
Hello Carl, Thank you for the feedback. You are absolutely right. I was remiss in not addressing the other questions. 2. 440-R SMT Detergent will clean RMA and No-clean solder pastes in 1 � 2 minutes using ultrasonics at ambient temperature and 5
Electronics Forum | Sun Jul 15 17:48:51 EDT 2001 | kerryn
You should check the archives, there has been much written on this subject in the past. Asking about the correct chemistry is wise. It never ceases to amaze me how many people think ultrasonics will work without the proper chemistry. Without the rig
Electronics Forum | Fri Jul 23 14:41:41 EDT 2004 | Steve Stach
Dear JSK, It sounds like the root causes of your problem are two fold. First, excessive heat will polymerize the abietic acid found in rosin forming neo-abietic diamers and polymers which are much less soluble than the parent monomer. There are
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