makeing fuel tank useing fiberglass

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jany77

Well-Known Member
Joined
Jul 5, 2005
Messages
455
Location
california
hi guys can anyone recomend what type of resing ,foam and fabric should be use to make small 6 gallon fuel tank ,i tryied reach curedcomposites web but its down so any other option? thank you
 

craig saxon

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Joined
Sep 26, 2010
Messages
549
Location
Canberra, ACT, Australia
Cured epoxy is impervious to fuel. The easiest way to make a tank is to hotwire or carve a plug from expanded poly styrene foam, cover it with fiberglass and epoxy, when it has fully cured, cut the filler hole in it with a hole saw and pour some fuel in. This will melt the styrene. Wash it out several times with fresh fuel then fit your fuel line fittings. If you need to fit baffles, cut the tank in half, fabricate your baffles and bond the halves back together with fiberglass tape.
Craig
 
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wsimpso1

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Staff member
Joined
Oct 18, 2003
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9,024
Location
Saline Michigan
Resin that is really impervious to fuels, including auto fuel with ethanol is vinylester. Unfortunately, that means that you can not build over styrene foam, but there are other ways. This subject has already been talked over pretty good, so search on fuel tanks in the composite forum, and then come back with any more questions or join one of the threads already started...

Billski
 

Dan Thomas

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Joined
Sep 17, 2008
Messages
7,046
Mine is 15 years old. Made of glass cloth and polyester resin. Still hard and tight. It was made of 1/4" hardware cloth (that's the galvanized screen used for attic vents and so on, available in various grid sizes) cut to shape and wired together, then glassed over. Fitting are steel sheet woth whatever you need brazed to them, sanded or bead-blasted so the resin will hold them.

Gotta watch the layers. "Just one more to make sure" makes a really heavy tank. Mine's that way. Maybe that's why it doesn't leak yet...

Here's a device made of hardware cloth. It's a trap of some sort, not a tank, but you get the idea:

233780941_o.jpg

Dan
 

Lucjon

Member
Joined
Dec 16, 2009
Messages
21
Location
Melbourne, Australia
there are many different methods, as discussed many times on here including foam sandwich construction which is very easy to do with epoxy resin, foam and glass, followed by a fuel tank sealant like "Pro-Seal"...
 
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