ethanol resistant resin

Discussion in 'Materials' started by peterf123, Mar 23, 2012.

  1. peterf123
    Joined: Mar 2012
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    Location: illinois

    peterf123 Junior Member

    Has anyone ever found the solution to building fiberglass gas tanks that will hold 10% ethanol fuel without destroying the tank and/or engine? I'm sure there is an ethanol resistant resin out there, just not sure where to buy it. Anybody know?
     
  2. CatBuilder

    CatBuilder Previous Member

  3. dinoa
    Joined: Oct 2007
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    Location: florida

    dinoa Senior Member

    R&G epoxy-C is one. I have a test coupon in a 50% ethanol-unleaded gas mix for 2.5 years and going that is holding up well with same stiffness , no delamination, discoloration or flaking. A bit viscous though and somewhat hard to wet out.

    Many brands of vinyl ester are also used but someone else will have to be specific as I've only used a locally mixed product for a header tank.

    MGS L-160 with 163 hardener has been used successfully in epoxy glass aircraft fuel tanks. A resin microballoon-fumed silica (cabosil) initial coat will also help prevent wicking up the fibers.

    Shell Epikote 162 with Epikure 113 hardener is a legacy system not of much interest.

    Dino
     
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  4. peterf123
    Joined: Mar 2012
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    peterf123 Junior Member

    Where can I get R&G Epoxy-C?
     
  5. peterf123
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    peterf123 Junior Member

    Another question. Anyone know how to make fuel tanks out of anything other than metal or fiberglass? Is there any way I can use some sort of plastic?
     
  6. dinoa
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    dinoa Senior Member

  7. peterf123
    Joined: Mar 2012
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    Location: illinois

    peterf123 Junior Member

    unfortunately, it does not seem that they ship to the united states. I just dont know what to do...
     

  8. peterf123
    Joined: Mar 2012
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    Location: illinois

    peterf123 Junior Member

    For anyone who is interested, i think i found a solution. On expresscomposites.com, they claim to have a resin which is ethanol resistant. It is the AOC F764 resin. Its really not too expensive either.
     
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