Electronics Forum | Tue Jun 26 19:51:31 EDT 2001 | davef
Rosin. A hard, natural resin, consisting of abietic acid [and pimaric acids in Europe] and their isomers, some fatty acids, and terepene hydrocarbons. Rosin is extracted from pine tree stumps. It�s an organic material distilled from oleoresin in p
Electronics Forum | Mon Jun 25 20:35:44 EDT 2001 | davef
According to J-STD-004 "Requirements for Soldering Fluxes", fluxes are classified by their chemical composition, activity level and halide content. In this scheme, each flux type is identified by a 4-character designator, where: * First two character
Electronics Forum | Mon Jul 02 22:09:40 EDT 2001 | mugen
Any reply yet from the Lab? we eagerly await for news...
Electronics Forum | Wed Jun 20 11:28:45 EDT 2001 | Steve
Fluxes that have been properly heat activated are insulative (non-reactive) during operation in the field and during environmental testing. If you are also performing a cleaning operation, the possibility of growing dendrites is so remote that it can
Electronics Forum | Tue Jun 19 20:42:49 EDT 2001 | davef
So, they want you to talk through a justification for mixing fluxes? That's GREAT, if you can get away with it!!! Tell us more about Safety Clean.
Electronics Forum | Wed Jun 20 11:43:11 EDT 2001 | genny
M.G. Chemicals "Safety Wash Cleaner Degreaser". A primarily ethanol / methyl alcohol product. Part number "405". Brushes, Kim Wipes, or cotton swabs have all been used from time to time to apply it to the PCB.
Electronics Forum | Tue Jun 26 10:49:59 EDT 2001 | genny
Yes I have read that standard, but it doesn't tell me what I need to know. Both have the same activity level and halide rating (L0) The AIM technical guy told me RO is a natural gum rosin, while (RE) Resin has more processing or something (maybe so
Electronics Forum | Mon Jun 18 21:46:27 EDT 2001 | davef
It's possible that combining these two fluxes is benign, you sure can't say your customer is wrong, can you???? So, what is the intent of leaving these two different flux materials on your board? What is the residue remaining on your board as your
Electronics Forum | Sat Jun 23 12:42:20 EDT 2001 | genny
OK, to reopen this and muddy the water a little more, What is the difference between REL0 and ROL0 solder. The solder paste that more than one of our suppliers is using is AIM293+ - this is REL0 The no-clean solder wire we use in house is ROL0, mad
Electronics Forum | Wed Jun 27 10:17:46 EDT 2001 | genny
OK....I now fully understand the difference in chemical makeup between rosin and resin. But....can you, or would you, mix them without any concern? Could you or someone please just give me a straight yes or no answer? Please? Of course,... I woul
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