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