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    <p>Before you wash anything read the data sheets. Not all parts can
      tolerate water and/or ultrasonic cleaning.</p>
    <p>Jay S.<br>
    </p>
    <div class="moz-cite-prefix">On 9/28/2023 1:00 AM, Andrei
      Kudryavtsev via Synth-diy wrote:<br>
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cite="mid:CAL4jy_KYBwBKqfeCsm7UTQ_LVMnVmTzQKeb91k7qMwKwNehaWw@mail.gmail.com">
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      <div dir="ltr">Hi All, 
        <div>I have PCBs with SMD and TH parts, and also with plastic
          connectors. SMD parts are machine soldered, TH components are
          manually installed. Obviously some flux residue is visible
          from manual soldering. </div>
        <div>I have a 22L ultrasonic cleaner with a temperature
          control. </div>
        <div>The boards are quite large, like 100x250mm or so.</div>
        <div>Wondering if you can share some experience using an
          ultrasonic cleaner to avoid solvent based sprays and
          mechanical cleaning.</div>
        <div>There are some threads of using IPA inside small zip lock
          bags to avoid evaporation, which seems to work well for small
          boards and is relatively safe. However it's not my option due
          to the board size. </div>
        <div>I also see some "ultrasonic flux remover" detergents on
          eBay, but for some reason they are all in the UK. </div>
        <div>Also I found the specialized Flux Off by Chemtronics but
          have never tried it. </div>
        <div>Please, suggest.</div>
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        <span class="gmail_signature_prefix">-- </span><br>
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                <div>Andrei Kudryavtsev,</div>
                <div><br>
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                <div>My last album <b>Two Match - The 1st Fill</b><span
                    style="font-size:12.8px"> on </span><a
                    href="http://itunes.apple.com/us/album/the-1st-fill/id1241529125"
                    style="font-size:12.8px" target="_blank"
                    moz-do-not-send="true">iTunes</a><span
                    style="font-size:12.8px"> </span>and <a
                    href="https://open.spotify.com/album/4aM8DzmN5yi4ho1gcmC8ls"
                    target="_blank" moz-do-not-send="true">Spotify</a></div>
                <div>Follow me on <a
                    href="https://www.facebook.com/andrei.kudryavtsev.5"
                    target="_blank" moz-do-not-send="true">Facebook</a>,
                  <a href="https://www.instagram.com/deftaudio/"
                    target="_blank" moz-do-not-send="true">Instagram</a></div>
                <div><br>
                </div>
                <div>Music technologies by </div>
                <div>Deftaudio <a
                    href="http://www.tindie.com/stores/Deftaudio"
                    target="_blank" moz-do-not-send="true">www.tindie.com/stores/Deftaudio</a></div>
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