Electronics Forum | Thu Mar 23 13:48:07 EST 2000 | John Storjohann
A number of years ago I used a Kester product called Solder Saver. It is a thick liquid that one squirts onto the dross on a hot solder pot. It separates out the solder leaving a crust of almost clean dross. Unfortunately a mask is still required. Th
Electronics Forum | Wed Feb 14 17:16:23 EST 2001 | slthomas
From Kester's web site: "Flux cored solder wire has a limited shelf life determined by the alloy used in the wire. For alloys containing more than 70% lead, the shelf life is two years from date of manufacture. Other alloys have a shelf life of thr
Electronics Forum | Fri Feb 23 12:06:23 EST 2001 | traviss
Ok I could not pass this one up so I tried it out today, it didn�t work for me. Could I get more information such as flux type, and sugar concentration? I used Kester RMA 285 and concentration almost to saturation (looked almost like syrup). I wander
Electronics Forum | Thu Jan 20 23:01:19 EST 2000 | KS Wong
Larry, My lines are running ENTEK boards all the while. Currently, we used Kester R-252 solder paste. We found voids! Now we are evaluating the Alpha Metal UP78-M. I've been told that the better flux due solve the voids problem, especially whe
Electronics Forum | Thu Dec 09 15:14:41 EST 1999 | Ron Costa
I have been seeing wetting problems with Texas Instruments componets. I am using Kester 596L OA water soluble solder paste. My reflow profile is in spec. for this formula. Has anybody else seen this problem and if so how did you resolve it? Any feed
Electronics Forum | Mon Oct 11 12:25:02 EDT 1999 | Whitney Trepel
We have three buckets filled with leftover solder paste from our screen printing process. Kester has informed me that they no longer take paste, but only dross and pot dumpings. Does anyone know if there's someplace I can recycle this, or am I goin
Electronics Forum | Fri Jan 15 10:52:27 EST 1999 | John
| Hi all, | | I thought I'd use this forum to ask a couple general questions on fluxes for manual operations: | First - Is it OK to use a wave soldering type flux (specifically OA)? Thinking about activation temperatures and the ramp rate of the wav
Electronics Forum | Wed Mar 11 00:09:13 EST 1998 | Fabian Morales
I haven't worked with Protecto but I have seen very good results using a no-clean flux and a nitrogen atmosphere in the reflow oven. | Entek or Protecto? | I've hear Kester's Protecto is a very good OSP that may be more assembly process-friendly th
Electronics Forum | Fri Dec 07 11:46:28 EST 2001 | Brian W
Before changing solder pastes or jumping through too many hoops, check the melting point of the 100 Sn (pure tin) connection. According to Kester, the melting point of 100Sn solder paste is 232 degrees C. If you do not reach that temperature, you wi
Electronics Forum | Mon Feb 18 11:08:59 EST 2002 | Claudine Y. Corda
Ashok, a few suggestions.......steel/brass fittings anywhere in the flux line can cause that problem; also, check the transfer tank (if used) for cleanliness . There may be a problem with the pump, if you are using Sono-Tek's SonoFlux system then p
