integral fuel tanks

Discussion in 'Materials' started by catbaloo, Jul 6, 2014.

  1. catbaloo
    Joined: Jan 2005
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    Location: Dubai

    catbaloo Junior Member

    Looking for a bit of advice.

    I am about to make an integral fuel tank. The hull is an epoxy composite construction.
    What type of sealer / paint can I use to seal this tank. The fuel will be petrol / gas.
    Appreciate your help.
    Cat
     
  2. groper
    Joined: Jun 2011
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    Location: australia

    groper Senior Member

    Novolac vinyl ester resin.
     
  3. rxcomposite
    Joined: Jan 2005
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    rxcomposite Senior Member

    While there are Iso resins, VE, and epoxy resins that are resistant to gasoline/alcohol mixture, Novolac (epoxy) seems to be a popular choice. http://msdssearch.dow.com/Published...d.pdf?filepath=/296-00279.pdf&fromPage=GetDoc

    http://www.boatdesign.net/forums/boat-building/epoxy-fuel-tanks-278.html

    http://www.boatdesign.net/forums/fi...-build-ethanol-safe-gasoline-tanks-44720.html

    Check also UL 1316 standard ("Glass-Fiber-Reinforced Plastic Underground Storage Tanks for Petroleum Products, Alcohols, and Alcohol-Gasoline Mixtures")
    http://www.fibratank.com/certif/Dev of Poly Oxy Fuels.pdf

    Last layer in contact with gasoline should be resin rich layer. We usually embedd a copper strip or SS wire mesh at the bottom to serve as a grounding plate (by electrical connection).
     
  4. catbaloo
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    catbaloo Junior Member

    thanks

    Thanks guys,
    Appreciate your feed back
    Cat
     
  5. Ike
    Joined: Apr 2006
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    Ike Senior Member

    Most standards for gasoline powered boats do not permit integral fuel tanks. It's a matter of safety.
     
  6. UNCIVILIZED
    Joined: Jun 2014
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    UNCIVILIZED DIY Junkyard MadScientist

    Ike, a similar query was running through my head, especially with this new fuel formulation at the pumps (15% Ethanol). Although I know that to some degree the whole "legality" of this thing depends on where you are. Both Country, & Locale.
     
  7. Ike
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    Ike Senior Member

    That's why I said "standards". If it was US, Canada, Europe, etc I would have said "regulation". The person asking is in Dubai. I don't know if they have any such laws. But they may recognize ISO standards.
     
  8. rxcomposite
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    rxcomposite Senior Member


  9. catbaloo
    Joined: Jan 2005
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    Location: Dubai

    catbaloo Junior Member

    Hi Guys

    Thanks for your replies and advice.
    In the end we decided to stick with the tried and tested ally tanks.

    Happy boating
    Cat
     
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