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Soldering top seam on truck radiator core

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  • Soldering top seam on truck radiator core

    I'm guessing 50/50 lead solder , What's the best flux please ?
    I can build anything You want , if you draw a picture of it , on the back of a big enough check .

  • #2
    Re: Soldering top seam on truck radiator core

    Do not use old flux,,,,,,,,,it seems to get old and lose something,,,,,,,I like Oatey #5

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    • #3
      Re: Soldering top seam on truck radiator core

      Just did this at a crack on the neck of my old truck. I used some old 50/50 rosin core I had along with Nokorode. Worked fine, no problems. (I won't tell the welder to clean it all good. )

      Pity new radiators are plastic throwaways.

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      • #4
        Re: Soldering top seam on truck radiator core

        Originally posted by BobsPlumbing View Post
        Just did this at a crack on the neck of my old truck. I used some old 50/50 rosin core I had along with Nokorode. Worked fine, no problems. (I won't tell the welder to clean it all good. )

        Pity new radiators are plastic throwaways.
        Thanks Bob, I was thinking Nokorrode , didn't know the spelling !
        I can build anything You want , if you draw a picture of it , on the back of a big enough check .

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        • #5
          Re: Soldering top seam on truck radiator core

          Stay-Clean® Liquid Flux | The Harris Products Group

          Clean it up with a wire brush real good, above flux and 50-50 bar solder if you have any. Very low heat.
          WE LIVE IN THE LAND OF THE FREE,
          ONLY BECAUSE OF THE BRAVE

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          • #6
            Re: Soldering top seam on truck radiator core

            Came out fine ,Thanks all
            I can build anything You want , if you draw a picture of it , on the back of a big enough check .

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