[sdiy] Flux residue removal

[Scott Gravenhorst]

KA4HJH <ka4hjh at gmail.com> wrote:
>
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>> On May 18, 2018, at 4:17 PM, Scott Gravenhorst <music.maker at gte.net> wrote:
>> 
>> 
>> I was able to get 99% isopropanol online.  Google is your friend, I see it at Walmart
>> and several other places.
>
>I checked the local Walmart but it's one of the smaller stores 
>and they didn't have it. I do have some denatured ethanolwhich 
>works better? (if there's any difference at all). 
>
>Also, how concerned should I be about the residue on top of the 
>board that I can't reach with a tooth brush? I'm working on that 
>little digital scope we were talking about recently and it has an 
>input impedance of 1M. 
>
>I'm also building a Nixie tube thermometer with a 170V power 
>supply. The kit seller highly recommends removing the flux due to 
>the presence of HV and CMOS logic on the same board. 
>
>
>>  I suspect that a reason it is either not stocked or bought
>> up in stores is that it can be use to process cannabis into a more concentrated form. 
>
>"Whoah Beavis, we need to try that out."
>
>"Yeah, me to."
>
>
>> I was also informed that IPA is not a proper abbreviation for it and that IPA really
>> stands for India Pale Ale...  :)
>
>
>Is that good for cleaning PC boards?  8D

At the very least, it's good for drinking while cleaning the PC boards, or soldering or testing or
,,, :p  :)  :)

>
>
>Terry Bowman, KA4HJH
>"The Mac Doctor"
>
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>   On May 18, 2018, at 4:17 PM, Scott Gravenhorst <[1]music.maker at gte.net>
>   wrote:
>
>   I was able to get 99% isopropanol online.  Google is your friend, I see
>   it at Walmart
>   and several other places.
>
>   I checked the local Walmart but it's one of the smaller stores and they
>   didn't have it. I do have some denatured ethanol--which works better?
>   (if there's any difference at all).
>   Also, how concerned should I be about the residue on top of the board
>   that I can't reach with a tooth brush? I'm working on that little
>   digital scope we were talking about recently and it has an input
>   impedance of 1MW*.
>   I'm also building a Nixie tube thermometer with a 170V power supply.
>   The kit seller highly recommends removing the flux due to the presence
>   of HV and CMOS logic on the same board.
>
>    I suspect that a reason it is either not stocked or bought
>   up in stores is that it can be use to process cannabis into a more
>   concentrated form.
>
>   "Whoah Beavis, we need to try that out."
>
>   "Yeah, me to."
>
>   I was also informed that IPA is not a proper abbreviation for it and
>   that IPA really
>   stands for India Pale Ale...  :)
>
>   Is that good for cleaning PC boards?  8D
>
>   Terry Bowman, KA4HJH
>   "The Mac Doctor"
>
>References
>
>   1. mailto:music.maker at gte.net
>
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-- ScottG
________________________________________________________________________
-- Scott Gravenhorst
-- http://scott.joviansynth.com/
-- When the going gets tough, the tough use the command line.
-- Matt 21:22