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Best/lightest weight fuel proofing?

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Best/lightest weight fuel proofing?

Old 09-11-2002, 10:21 PM
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Default Best/lightest weight fuel proofing?

Looking at the inside of a DF plane and 1/64th ply duct tube and seeing all the balsa, bulkheads, etc., I'm wondering what's the best-and easiest way- to fuel proof the 'guts' without adding several pounds? I've used spray polyurathane, alcohol/epoxy, and plain ole spray enamel on firewalls, but seems like a lot of weight for a couple of sq. ft. What do you guys use?
Old 09-11-2002, 11:37 PM
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Default Best/lightest weight fuel proofing?

I generally use thinned epoxy or finishing resin, but if I'm after the lightest solution, I use dope. Use at least 2 coats, but much of the fluid is solvent which evaporates, leaving a lighter fuelproofing solution.
Old 09-12-2002, 04:24 AM
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Default This stuff....

That's the old label on the left, newer one on the right.
Good ol' fuel proofer...watch out for the fumes ( I think thats why they call it dope )
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