[sdiy] top soldering through hole
Jason Proctor
jason at redfish.net
Wed Feb 14 20:01:35 CET 2018
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/rollo-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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