is tree sap on older gel-coat a big problem?

Discussion in 'Fiberglass and Composite Boat Building' started by Squidly-Diddly, Dec 20, 2009.

  1. Squidly-Diddly
    Joined: Sep 2007
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    Squidly-Diddly Senior Member

    would a good coating of sap on this boat devalue it any more than an afternoon's worth of elbow grease?


    How to clean a couple years of sap off the gel-coat without damage?

    sap will brittle after a while.



     
  2. apex1

    apex1 Guest

    Hot water, low pressure. Kärcher!

    The more solid parts: rug with turpentine, soon rinse with soap water.

    Regards
    Richard
     
  3. Squidly-Diddly
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    Squidly-Diddly Senior Member

    apex....."Kärcher" ???

    what does "Karcher" mean?
     
  4. PAR
    Joined: Nov 2003
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    PAR Yacht Designer/Builder

    Use a heavy duty cleaner, like "Spray 9" or other. Mineral spirits or turps might spank it, though gasoline will probably wipe it right off. Of course get the area rinsed quickly after.
     
  5. apex1

    apex1 Guest

    S -D

    Kärcher is the manufacturer of the most common pressurized, hot water units known on earth.
     
  6. Fanie
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    Fanie Fanie

    Good idea Richard, but I was thinking why not just sail it off... Prolonged exposure to water may well dissolve it.
     
  7. apex1

    apex1 Guest

    At the end, water will dissolve everything, you are right Fanie.


    And Paul:

    I did not say any sort of solvents and agents! Plain, real Turpentine, was my recommendation.
     
  8. Fanie
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    Fanie Fanie

    Oh dear Squidly, there goes your gell coat too :D
     
  9. hoytedow
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    hoytedow Wood Butcher

    Karcher is great but don't let nozzle get too close to finish or it will cut like a knife.
     
  10. apex1

    apex1 Guest

    Hoyte :(

    LOW
    pressure was recommended L O W

    imagine a setting you would use to buff up the cherry on the cream on the birthday cake. or so...........
     
  11. hoytedow
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    hoytedow Wood Butcher

    Yes, I know but it can't be said too often.
     
  12. somalley
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    somalley New Member

    maas aero

    Do you still have this for sale?
     
  13. gonzo
    Joined: Aug 2002
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    gonzo Senior Member

    Turpentine dries slowly and is works well. There is a general adhesive remover by 3M that also works well
     
  14. tunnels

    tunnels Previous Member

    A :D blast with a co2 fire exstigisher and freeze it it will just about fall off !!:p
     

  15. pjssailor
    Joined: Jan 2011
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    pjssailor Junior Member

    I have found achohol is the only thing that cuts our pine sap. Try it.
     
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