Fuel tank sealer

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  • BigVic54
    • Jan 2026

    #1

    Fuel tank sealer

    I had an opportunity to get my tank painted and I jumped on it. Now I find the tank has a leak.

    Can anyone suggest a sealer that won't eat the paint?
  • Big T
    Forum LongTimer
    Past Site Supporter
    Super Site Supporter
    • Mar 2005
    • 12364
    • West Slope, OR

    #2
    Vic, there's dozens of threads on who thinks which sealer is best

    search them out
    1978 GS 1000 (since new)
    1979 GS 1000 (The Fridge, superbike replica project)
    1978 GS 1000 (parts)
    1981 GS 850 (anyone want a project?)
    1981 GPZ 550 (backroad screamer)
    1970 450 Mk IIID (THUMP!)
    2007 DRz 400S
    1999 ATK 490ES
    1994 DR 350SES

    Comment

    • ttfraz

      #3
      I've used por-15 tank kit twice with no problem if u you follow the directions. Sealed a small pin hole

      Comment

      • Nessism
        Forum LongTimer
        GSResource Superstar
        Past Site Supporter
        Super Site Supporter
        • Mar 2006
        • 35768
        • Torrance, CA

        #4
        Problem is you need to derust the tank before sealing (despite what the sealer makers may suggest), and during the process any leaks you may have will open further and new leaks may form.

        And yes, as Big T says, search. There are literally hundreds of old posts/threads about derusting and sealing tanks.
        Ed

        To measure is to know.

        Mikuni O-ring Kits For Sale...https://www.thegsresources.com/_foru...ts#post1703182

        Top Newbie Mistakes thread...http://www.thegsresources.com/_forum...d.php?t=171846

        Carb rebuild tutorial...https://gsarchive.bwringer.com/mtsac...d_Tutorial.pdf

        KZ750E Rebuild Thread...http://www.thegsresources.com/_forum...0-Resurrection

        Comment

        • wymple
          Forum Sage
          Past Site Supporter
          • Apr 2014
          • 1893
          • SE Iowa

          #5
          And in the end nothing is easier or better than Red-Kote. JMO

          Comment

          • tkent02
            Forum LongTimer
            Past Site Supporter
            • Jan 2006
            • 35571
            • Near South Park

            #6
            Except POR 15.
            http://img.photobucket.com/albums/v5...tatesMap-1.jpg

            Life is too short to ride an L.

            Comment

            • posplayr
              Forum LongTimer
              GSResource Superstar
              Past Site Supporter
              • Dec 2007
              • 23673
              • Tucson Az

              #7
              Originally posted by tkent02
              Except POR 15.
              Or casewell

              Comment

              • dardoonk
                Forum Sage
                • Nov 2006
                • 1002
                • Indian Trail (Charlotte) NC

                #8
                Originally posted by wymple
                And in the end nothing is easier or better than Red-Kote. JMO
                +1 here... easy and it works

                Comment

                • argonsagas
                  Forum LongTimer
                  Charter Member
                  GSResource Superstar
                  Past Site Supporter
                  • May 2002
                  • 18744
                  • Toronto, Canada

                  #9
                  Do NOT do it yourself.

                  A DIY project means you take all the risks pertaining to the work and to your health and there is no one to guarantee that the work you do will stand up to reality,....except you.


                  Look for a local company that specializes in radiator repairs and (if they have not openly advertised this service) ask about gas tank repairs.


                  They will clean it, coat it, and guarantee their work.


                  I don't know the specific circumstance in your location, but, at a guess, it will cost about 30 to 50% more than a DIY project, with no toxic or other hazard exposure,.....and you get a guarantee......

                  Comment

                  • Nessism
                    Forum LongTimer
                    GSResource Superstar
                    Past Site Supporter
                    Super Site Supporter
                    • Mar 2006
                    • 35768
                    • Torrance, CA

                    #10
                    Originally posted by argonsagas
                    Do NOT do it yourself.

                    A DIY project means you take all the risks pertaining to the work and to your health and there is no one to guarantee that the work you do will stand up to reality,....except you.


                    Look for a local company that specializes in radiator repairs and (if they have not openly advertised this service) ask about gas tank repairs.


                    They will clean it, coat it, and guarantee their work.


                    I don't know the specific circumstance in your location, but, at a guess, it will cost about 30 to 50% more than a DIY project, with no toxic or other hazard exposure,.....and you get a guarantee......
                    ...and you will get a ruined paint job to go with your guarantee...if they will give you one, which is doubtful since the tank already has holes in it.
                    Ed

                    To measure is to know.

                    Mikuni O-ring Kits For Sale...https://www.thegsresources.com/_foru...ts#post1703182

                    Top Newbie Mistakes thread...http://www.thegsresources.com/_forum...d.php?t=171846

                    Carb rebuild tutorial...https://gsarchive.bwringer.com/mtsac...d_Tutorial.pdf

                    KZ750E Rebuild Thread...http://www.thegsresources.com/_forum...0-Resurrection

                    Comment

                    • tkent02
                      Forum LongTimer
                      Past Site Supporter
                      • Jan 2006
                      • 35571
                      • Near South Park

                      #11
                      It's easy to do, why pay someone to do it?
                      http://img.photobucket.com/albums/v5...tatesMap-1.jpg

                      Life is too short to ride an L.

                      Comment

                      • wymple
                        Forum Sage
                        Past Site Supporter
                        • Apr 2014
                        • 1893
                        • SE Iowa

                        #12
                        Originally posted by tkent02
                        Except POR 15.
                        I was a fan of Por 15, until I discovered Red-Kote.

                        Comment

                        • loud et

                          #13
                          Care to expand on your red kote experience?
                          Prep, application, results (both initial and long term).

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