[sdiy] top soldering through hole
Jason Proctor
jason at redfish.net
Wed Feb 14 20:13:21 CET 2018
right - for nocturnal post-wash drying i've used a heat gun on the lowest
setting - and usually from a distance!
On Wed, Feb 14, 2018 at 11:08 AM, Pete Hartman <pete.hartman at gmail.com>
wrote:
> 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-con-aleacion-estano-plomo-60-40.html
>>>> <http://www.steren.com.mx/roll
>>>> o-de-100-gramos-de-soldadura-con-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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