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Blog Quick: what's your best desoldering braid/wick tip or trick?
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  • Author Author: baldengineer
  • Date Created: 1 Feb 2021 4:59 AM Date Created
  • Views 9701 views
  • Likes 14 likes
  • Comments 49 comments
  • soldering
  • solder wick
  • desolder
  • desoldering braid
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Quick: what's your best desoldering braid/wick tip or trick?

baldengineer
baldengineer
1 Feb 2021

image

Since last March 2020, I have been live-streaming three days a week. My streams are all electronics related but include retro computer repairs, soldering kits, Arduino coding, explaining measurements, and other electronics stuff. Several of the recent Workbench Wednesdays episodes have been a result of a live stream. Another outcome from these streams is that my soldering skill has increased significantly. Not just because I am practicing more, but because constantly being watched and critiqued creates motivational awareness!

 

The other day, someone commented that I am a "solder wick magician." Of the things I get called online, I consider that one a compliment. Though, unlike the other names, it may not be entirely deserved. At least, I don't think so. However, as the animated GIF above shows, I occasionally get an excellent wicking action when using desoldering braid.

 

There are only a few tips and tricks that I (think I) actually know. So, I thought I'd ask the community about yours. Getting started, here is something obvious to me now, but people usually get the ah-ha look on their faces when I show them. Unless the wick is brand new, I'll dab it with a flux pen before using it. I find flux on the joint I'm trying to remove, plus the extra flux that wicks into the braid, is very effective. (And a great way to use up old braid.)

 

What are some tips or tricks you have when using desoldering braid (or wick)?

 

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Top Comments

  • Fred27
    Fred27 over 5 years ago +9
    I was also going to suggest using more flux, but it seems everyone's on the same page with that one. I have a "shoe polish" style tin of flux that I must have got free with something from China. I drag…
  • Andrew J
    Andrew J over 5 years ago +7
    For through hole components, don't bend the leads underneath the board to hold them in place on the top side. That "can" make it more difficult to desolder in the future if needed and the part never stays…
  • wolfgangfriedrich
    wolfgangfriedrich over 5 years ago +7
    Use more flux, always....
  • Jan Cumps
    Jan Cumps over 5 years ago

    Wicking in action. Right after wicking, no clean up.

    I'm modifying a PSoC6 kit. I used 420 °C for the hot air to remove a resistor, and 380 °C to wick the pads.

    Both times with flux applied:

     

    image

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  • cstanton
    cstanton over 5 years ago in reply to Jan Cumps

    I'd certainly be the first to say that the problem's me and my technique image

     

    I'll also check out the video shabaz posted image

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  • shabaz
    shabaz over 5 years ago in reply to Jan Cumps

    That sounds like a better idea! As does the pre-heater.

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  • Jan Cumps
    Jan Cumps over 5 years ago in reply to shabaz

    ... Also the iron needs a bit of solder on it to kick-start the wick into action, since it will allow the wick to heat up quicker through better heat contact that way....

    I use flux paste for priming, Shabaz. A lot. It has the same effect and it leaves the wick fully dedicated to the solder that must go.

    This is my recipe:

     

    image

     

    Also a preheater does wonders (as recently discussed on the community). It avoids that the braid gets stuck on a larger pad because of sudden heat difference.

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  • shabaz
    shabaz over 5 years ago in reply to cstanton

    Hi Christopher,

     

    I'm wondering if it's the wick rather than the solder, or the iron may be underpowered and perhaps burning off the flux before the solder melts? (I've no idea if that would occur, but I do vaguely remember having difficulty with the older low-power Antex irons).

    Also the iron needs a bit of solder on it to kick-start the wick into action, since it will allow the wick to heat up quicker through better heat contact that way.

    I recorded a video here which shows how quickly the wick should take up the solder, about three minutes into it: https://www.youtube.com/watch?v=yjbuZd1XpSc

    (It's not a best practice video or anything, this was just my second attempt at drag-soldering so I'm sure I'm doing a lot wrong. Full description of what I did here: Drag-soldering Surface-mount components ).

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