Electronics Forum | Mon Sep 09 19:17:56 EDT 2002 | dragonslayr
steve- once again I mention that the lead that is actually in the water is in solution i.e. the lead is in a molecular form that has attached to a H2O molecule. To have a minimum of lead that is below the regulated ppm, there cannot be any chunks,
Electronics Forum | Mon Sep 09 13:46:34 EDT 2002 | dragonslayr
Your lack of obvious solder balls indicates you have a decent process. However, there are still small solder balls that are free and floating on the surface of the boards prior to wash. That same solder ball is washed off and ends up in the wash solu
Electronics Forum | Sat Aug 28 15:43:56 EDT 1999 | ScottM
| Recently, our solder dross reclaimer refused to take our | used solder paste tubes. He said the small percent of paste | remaining in the tube is now considered hazardous waste. I'm interested in advice on how others are disposing of this "hazardou
Electronics Forum | Fri Aug 27 17:35:39 EDT 1999 | Jon Wentz
Recently, our solder dross reclaimer refused to take our used solder paste tubes. He said the small percent of paste remaining in the tube is now considered hazardous waste. I'm interested in advice on how others are disposing of this "hazardous wast
Electronics Forum | Mon Sep 09 17:45:33 EDT 2002 | slthomas
Around here that opens you up to some financial liability if ANY lead is found in the sewage, if they can't pinpoint the source. Every user over X lbs./month (dunno the specifics, just got this from our hazmat guy) is on the bubble for anyone else's
Electronics Forum | Fri May 13 08:08:15 EDT 2005 | davef
George We're not sure about the application of powder flux for original poster to this thread, but a common application of powder flux is in brazing. This powder flux can be either metal bearing or just flux. As an aside: Soldering and brazing are
Electronics Forum | Tue May 03 10:32:58 EDT 2005 | davef
DenM: What is the connection between the your contact that disposes of solder and F1358's [the original poster] need to dispose of expired flux powder?
Electronics Forum | Tue May 03 09:18:42 EDT 2005 | denismeloche
Call me and I will give you a company that will take your solder for disposal at no cost. Den, Manncorp 215-830-1200
Electronics Forum | Tue Aug 27 08:13:29 EDT 2002 | mk
Our company uses a conveyorised aqueous cleaner to wash printed circuits after water soluble solder paste is reflowed. The system is closed loop with carbon and resin filters. The water eventually will get dirty. Can it be dumped? Treated? How do y
Electronics Forum | Sat Sep 07 06:57:33 EDT 2002 | mk
I agree but, are there really heavy metals in this water? Our process is as follows. Print Paste Reflow Board (no components, water soluble paste only) Wash Board Same reflow profile for almost every order so no solder balling issues etc. Carbon an
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