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Old 09-24-2017, 02:41 PM
Aero_Octaveus Aero_Octaveus is offline
Join Date: Aug 2014
Location: Edmonton, AB
Posts: 154
Default Prime exterior of fuel tanks?

So i've completed my fuel tanks, leak tested them, wired and ready to install on the wing. In review of a few other build websites, it looks like nobody primes the exterior parts of the fuel tanks (back of the baffle, mating surfaces where the tanks mate to the wing) Obviously most folks prime the z-brackets.

Any thoughts? Has anyone primed these mating surfaces, or have you left it bare aluminum.
Garet Hess - Edmonton, AB
2016 Donation Current
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Old 09-24-2017, 02:55 PM
Carl Froehlich's Avatar
Carl Froehlich Carl Froehlich is offline
Join Date: Dec 2007
Location: Dogwood Airpark (VA42)
Posts: 1,612

I prime these areas.

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Old 09-24-2017, 03:01 PM
jibby212 jibby212 is offline
Join Date: Oct 2014
Location: Sarasota Fl
Posts: 118

Alodined inside, alodined and primed outside.
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Old 09-25-2017, 05:49 AM
Jesse's Avatar
Jesse Jesse is offline
Join Date: May 2005
Location: X35 - Ocala, FL
Posts: 3,566

We prime these areas.
Jesse Saint (Saint Aviation, Inc. - VAF Advertiser)
RV Hotel (hangar, room, car) at X35 in north FL

Commercial ASEL/S A&P/IA EAA Technical Counselor

Dynamic Prop Balancing, Prebuy Inspections, Condition Inspections, Repairs and Mods, Injector Tuning, Airframe, Engine, Panel Upgrades, Ferrying, etc.
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Old 09-25-2017, 08:50 AM
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airguy airguy is offline
Join Date: Oct 2006
Location: Garden City, Tx
Posts: 4,258

I dipped mine in alodine pre-assembly, so everything got coated. I didn't prime anything except the Z-brackets until it went to paint when the outside got primed.
Greg Niehues - VAF 2018 dues paid
Garden City, TX
N16GN flying!
Built an off-plan 9A with too much fuel and too much HP. Should drop dead any minute now.
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