<div dir="ltr">right - for nocturnal post-wash drying i've used a heat gun on the lowest setting - and usually from a distance!<div><br><div><br><div><br></div><div><br></div><div><br></div></div></div></div><div class="gmail_extra"><br><div class="gmail_quote">On Wed, Feb 14, 2018 at 11:08 AM, Pete Hartman <span dir="ltr"><<a href="mailto:pete.hartman@gmail.com" target="_blank">pete.hartman@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr">Good point Jason. I usually swing the board about and dry with a fluffy towel myself (rarely am I soldering during daylight). If I was doing it 100% right I'd have an air compressor handy to blow dry it.</div><div class="HOEnZb"><div class="h5"><div class="gmail_extra"><br><div class="gmail_quote">On Wed, Feb 14, 2018 at 1:01 PM, Jason Proctor <span dir="ltr"><<a href="mailto:jason@redfish.net" target="_blank">jason@redfish.net</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr">wash with soapy water, rinse with cleanest water available, dry in sun<div><br></div><div>the way to a shiny new flux-free board</div><div><br></div></div><div class="m_-7489272499385682702HOEnZb"><div class="m_-7489272499385682702h5"><div class="gmail_extra"><br><div class="gmail_quote">On Wed, Feb 14, 2018 at 10:48 AM, MTG <span dir="ltr"><<a href="mailto:grant@musictechnologiesgroup.com" target="_blank">grant@musictechnologiesgroup.<wbr>com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Wash with what and dry how? I've never water washed a board before.<br>
<br>
GB<span><br>
<br>
On 2/14/2018 10:29 AM, Jason Proctor wrote:<br>
</span><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><span>
same here -- 331 -> wash -> 44 for the rest. the boards are very clean and i've never had a single problem.<br>
<br>
<br>
<br></span><span>
On Wed, Feb 14, 2018 at 10:15 AM, David Moylan <<a href="mailto:dave@westphila.net" target="_blank">dave@westphila.net</a> <mailto:<a href="mailto:dave@westphila.net" target="_blank">dave@westphila.net</a>>> wrote:<br>
<br>
I'm also using 331 water soluble for most components, then a board<br>
wash. Blame Paul Schreiber.<br>
<br>
<br>
On 02/14/2018 09:13 AM, Ian Fritz wrote:<br>
<br>
I use Kester 44, never clean the flux, and boards I built 40<br>
years ago are still fine. Absorbs water? Corrodes? Somebody<br>
please come over and show me, because I can't see any of that.<br>
<br>
Always solder from the top, too.<br>
<br>
Ian<br>
<br>
<br>
<br>
On 2/14/2018 8:59 AM, Quincas Moreira wrote:<br>
<br>
I use a local brand, Steren, 60/40<br>
<a href="http://www.steren.com.mx/rollo-de-100-gramos-de-soldadura-con-aleacion-estano-plomo-60-40.html" rel="noreferrer" target="_blank">http://www.steren.com.mx/rollo<wbr>-de-100-gramos-de-soldadura-co<wbr>n-aleacion-estano-plomo-60-40.<wbr>html</a><br>
<<a href="http://www.steren.com.mx/rollo-de-100-gramos-de-soldadura-con-aleacion-estano-plomo-60-40.html" rel="noreferrer" target="_blank">http://www.steren.com.mx/roll<wbr>o-de-100-gramos-de-soldadura-c<wbr>on-aleacion-estano-plomo-60-40<wbr>.html</a>><br>
<br>
<br>
Yeah I guess it's not no clean, just regular leaded. I just<br>
never felt like enough flux got on the boards to warrant<br>
cleaning. I probably should though, if it's corrosive in the<br>
long run. I've only been doing this for 7 years, maybe I'll<br>
find out in 20 that I should have been cleaning all along!<br>
<br>
What should I use to clean then?<br>
<br>
Thanks Pete<br>
<br>
<br>
<br>
<br>
On Wed, Feb 14, 2018 at 8:59 AM, Pete Hartman<br>
<<a href="mailto:pete.hartman@gmail.com" target="_blank">pete.hartman@gmail.com</a> <mailto:<a href="mailto:pete.hartman@gmail.com" target="_blank">pete.hartman@gmail.com</a><wbr>><br></span>
<mailto:<a href="mailto:pete.hartman@gmail.com" target="_blank">pete.hartman@gmail.com</a><div><div class="m_-7489272499385682702m_-5114221146815434198h5"><br>
<mailto:<a href="mailto:pete.hartman@gmail.com" target="_blank">pete.hartman@gmail.com</a><wbr>>>> wrote:<br>
<br>
What type of solder are you using? Brand and model?<br>
<br>
I use Kester 331 water soluble flux solder for early<br>
components<br>
(stuff that can get wet), and it comes off the board<br>
entirely with a<br>
brush (nylon bristles, like a really big toothbrush)<br>
and warm/hot<br>
water. Thing about it is, if I were using it on the<br>
top and it were<br>
getting under components it would take more like an<br>
ultrasonic bath<br>
to clean and get flux out from under resistors and<br>
things, and if<br>
you don't clean it, the stuff is corrosive in the<br>
longer run.<br>
<br>
I finish up for things that can't get wet (pots etc)<br>
with Kester 245<br>
no-clean. It does leave some residue, but the main<br>
point is that<br>
it's not meant to be cleaned off normally, and it<br>
doesn't leave<br>
enough to look like some of the messes I've seen. I<br>
also use it for<br>
any top solder touch ups.<br>
<br>
I've seen some really nasty work come across my<br>
workbench for<br>
repair, stuff with 331 flux still on it after who knows<br>
how long,<br>
stuff with ancient rosin flux with the black and brown<br>
lava flows<br>
all over it.<br>
<br>
I figure if you're not using no-clean, you'd know it :)<br>
<br>
Pete<br>
<br>
<br>
<br>
On Wed, Feb 14, 2018 at 8:15 AM, Quincas Moreira<br>
<<a href="mailto:quincas@gmail.com" target="_blank">quincas@gmail.com</a> <mailto:<a href="mailto:quincas@gmail.com" target="_blank">quincas@gmail.com</a>><br></div></div>
<mailto:<a href="mailto:quincas@gmail.com" target="_blank">quincas@gmail.com</a> <mailto:<a href="mailto:quincas@gmail.com" target="_blank">quincas@gmail.com</a>>>><span><br>
wrote:<br>
<br>
I’ve never cleaned a board, ever... Maybe I’m using<br>
no clean<br>
solder and didn’t even know it, I just never felt<br>
the need. My<br>
builds look clean enough to me. Am I trippin’?<br>
<br>
Sent from my iPhone<br>
<br>
On Feb 14, 2018, at 07:33, Pete Hartman<br>
<<a href="mailto:pete.hartman@gmail.com" target="_blank">pete.hartman@gmail.com</a> <mailto:<a href="mailto:pete.hartman@gmail.com" target="_blank">pete.hartman@gmail.com</a><wbr>><br></span>
<mailto:<a href="mailto:pete.hartman@gmail.com" target="_blank">pete.hartman@gmail.com</a><span><br>
<mailto:<a href="mailto:pete.hartman@gmail.com" target="_blank">pete.hartman@gmail.com</a><wbr>>>> wrote:<br>
<br>
<br>
<br>
On Wed, Feb 14, 2018 at 7:25 AM, Mattias<br>
Rickardsson<br>
<<a href="mailto:mr@analogue.org" target="_blank">mr@analogue.org</a> <mailto:<a href="mailto:mr@analogue.org" target="_blank">mr@analogue.org</a>><br></span><span>
<mailto:<a href="mailto:mr@analogue.org" target="_blank">mr@analogue.org</a> <mailto:<a href="mailto:mr@analogue.org" target="_blank">mr@analogue.org</a>>>> wrote:<br>
<br>
Top side is much simpler, I'll never go<br>
back - but<br>
probably a bit trickier to get clean from<br>
flux etc?<br>
<br>
<br>
I think this is the main reason I still<br>
primarily bottom<br>
solder, but I check my joints and if I have<br>
ones that didn't<br>
wick up to the top I'll touch them up with<br>
no-clean.<br>
<br>
Pete<br>
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