Electronics Forum | Wed Oct 16 11:51:03 EDT 2002 | Brian W.
Pink Lady refers to solder stop, or temporary solder mask. There are a couple of types. Peelable, which you must peel off after processing, before wash, and of course before you ship. There is also a water soluble version, which dissolves in the w
Electronics Forum | Sun Apr 18 07:01:10 EDT 2004 | Nick Prince
"Thanks for all your informative replies. I do know that Motorola is using a No Clean Eutectic Solder for their BGA's. We are in Aerospace and is using a Water Soluble Paste Flux." This statement is confusing me (not to difficult at my time of life)
Electronics Forum | Thu Jan 27 11:23:45 EST 2005 | russ
Well first off I wouldn't evaluate paste for a wave process. I would use solder bar instead. Flux - top side fillets and no shorting on the solder side, does it clean well after processing if using water soluble flux. How wide is the process win
Electronics Forum | Mon Nov 01 16:22:47 EDT 2010 | jax
Who Cares... Mix Away! Although you should not mix different Solder Pastes' together in a container or on a stencil (Mostly due to the flux, although solder sphere size and shape could cause an issue), mixing solder brands or chemistries on a board
Electronics Forum | Wed Jan 30 17:23:07 EST 2013 | dyoungquist
In response to hegemon... This is not a recommended practice but..... We have added a few drops of water soluble flux to our water soluble solder paste when the paste is on the stencil. This was after the paste had "dried" out a bit. We have had
Electronics Forum | Wed May 29 18:52:59 EDT 2013 | navworx
Would like opinions on which brand of leaded water soluble solder has the longest print life. we're currently using Alpha WS-809. Each board goes through the printer every 15 minutes or so, and we wind up re-printing most boards as the solder isn't
Electronics Forum | Fri Dec 18 12:45:23 EST 2015 | deanm
Using a vapor degreaser with a solvent such as Vertrel, Novec, Techspray 1655, Solstice, etc. may work for you but solvents can attack certain plastics. Should be fine for SMT though. This is assuming you are using a no-clean (RMA) type flux, not wat
Electronics Forum | Tue Jul 16 12:24:25 EDT 2019 | slthomas
In VERY general terms, water soluble flux is usually better at getting good wetting of the soldered connections unless you have a very well controlled process, in which case no-clean can be very handy (you don't have to clean). Water soluble flux re
Electronics Forum | Fri Jun 25 12:10:34 EDT 2004 | tcp
We use water soluble paste, Kester R560. These units are wave soldered and cleaned in an Electrovert Aquastorm water wash with a 3% Kester saponifier solution in the first stage.
Electronics Forum | Tue Dec 14 07:48:23 EST 2004 | grayman
Can you provide me with non water base chemical ( 1 part only) for cleaning non water soluble flux and earth friendly. I would appreciate very much if you can also give me contact info. Arman
