BusdriverSA

Hi All,

I don't post here often, and perhaps this should be in the composites thread instead, but all the jet guys are here and I'm building a jet!

I am making up some fiberglass fuel tanks and was wondering if anyone has experience with Z-poxy finishing resin as a resin system for this application? The spec sheets says it's solvent resistant, but does anyone have any actual in-service experience with this stuff - will it withstand kerosene and diesel fuels over time?

The resin doesn't seem to cure as 'crisp' as others and I'm guessing this is because it's a little softer to make it easier to sand since it's a finishing resin... it does however make the laminate a bit more flexible which is a good thing for a fuel tank, not so?

Any input appreciated, thanks.

BusdriverSA

Dave Wilshere

I've used it on tank repairs and fuel related layups and not seen any issues

Dave

BusdriverSA

Great, thanks Dave I'll give it a go. Cheers!

Dennis Crooks

I've made multiple small molds and parts using Z-Poxy Finishing resin and routinely use it to fuel proof firewalls and such but I've not used it to make a fuel tank. My guess is that it would work just fine. Be advised that it may become brittle over time. Adding a small amount of 90% rubbing alcohol or denatured alcohol (maybe 10%) can minimize the brittleness though.
Dennis

jetmaven

CraigG

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I've also used it for many, many years on fuel tanks with no issues.