Author Topic: Fiberglass (Airtech) fuel tanks and street gas  (Read 8846 times)

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Offline Noel

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Re: Fiberglass (Airtech) fuel tanks and street gas
« Reply #25 on: January 13, 2010, 10:01:33 PM »
I note that Airtech recommends Caswell Epoxy Tank Sealer, which sounds pretty impressive. So I may just do that. I wonder, though, if anyone has any recommendations for aluminum tanks. I've seen several, most of which run into the four figures. And ones for the 750 are much more common than those for my 500.
'73 CB500

Offline andy750

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Re: Fiberglass (Airtech) fuel tanks and street gas
« Reply #26 on: January 14, 2010, 05:26:35 AM »
Contact forum member roccitycafe he is making Alu tanks for the 750 - very nice ones as well!

cheers
Andy
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traveler

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Re: Fiberglass (Airtech) fuel tanks and street gas
« Reply #27 on: January 19, 2010, 03:18:49 PM »
yeap.

He's making mine....

~Joe

Offline pampadori

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Re: Fiberglass (Airtech) fuel tanks and street gas
« Reply #28 on: January 19, 2010, 04:25:36 PM »
i had a 70's dunstall glass tank.  I lined it with caswell's kit.  It weighed 2 pounds more afterwards.  The caswell kit is too stiff and brittle.  It got one little crack in it and gas got behind the sealant and started disolving my glass tank. 

First clue, my carbs started getting stiff and sticking.  Cleaned them and then a couple weeks later they did it again.  Then i hit a large bump and the tank started leaking.

I patched it with some glass and resin but that didn't last long.  I ended up having to replace the tank.  I had the replacement made using an epoxy instead of resin.  It was vacuum bagged too. 
Using an epoxy was said to fix the issue that modern gas has with glass tanks.  I'm able to keep fuel with e10 or whatever that corn based #$%* is, in the tank year round.  The tank hasn't flinched since. 

so,
  • don't use caswell sealer.
    Fiberglass tanks can be built to hold modern fuel.  Just not airtech's.
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Offline Industrial Cafe

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Re: Fiberglass (Airtech) fuel tanks and street gas
« Reply #29 on: January 19, 2010, 04:30:46 PM »
I have a glass tank with the kreem treatment and I wish I woulda saved up for an alloy.  It's worth it.
everything I say is pure speculation and
I have no idea what I'm talking about  ._.


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