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May 16, 2012, 08:16 AM
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Fuel Proofing

My question is two coats of Aerogloss Sanding Sealer sufficent for fuel proofing?

Yes I know I can also use thinned 30 min epoxy but I am asking about the AeroGloss Sanding Sealer because it is much thiner, like water I was intending to apply two coats not sanding after the second coat.

Thanks Tom
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May 16, 2012, 08:26 AM
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I don't know I've either used dope or epoxy
May 16, 2012, 08:32 AM
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Originally Posted by jetmech05
I don't know I've either used dope or epoxy
I believe that the Aerogloss Sanding sealer is some kind of Dope.
May 16, 2012, 06:35 PM
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With dope based finishes, you need to keep applying enough coats that the surface starts to develop a sheen when held up to the light.

Usually I thin the first couple of coats heavily with acetone (because its cheap compared to dope thinners) so they'll soak deeply into the wood. That penetration provides a nice mechanical bond for subsequent coats to adhere to
May 16, 2012, 07:48 PM
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Tom what part of MD? In the late and mid 70's I was in Quantico then went to Andrews AFB. Went back to VA. in 97 where I worked at DCA...often I'd go to BWI to fix something...even been to Martin State airport.
May 16, 2012, 09:24 PM
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Yes, you need more dope on than that. Aerogloss is tricky. I tried cleaning a gun, after shooting Aerogloss clear, with a cheap lacquer thinner. and got grey jello. I had to clean it out with Aerogloss thinner. In my experience, Sig butyrate dopes are compatible with Aerogloss, but try a test panel first.
May 17, 2012, 07:51 AM
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I put one coat of Aerogloss Sanding sealer on and it doesnt seam to make much of a difference, It soaks in and is realy costly compared to just using BSI finish Cure or Hot Zap 30 min Epoxy, so I wil revert to those because they provide an obvious gloss finish.
May 18, 2012, 09:39 AM
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Tom, ordinary white Elmers GlueAll is nitromethane proof too (and stays flexible for decades). As long as you don't let it get wet with water in the rain, it works great as fuel proofer for firewalls, tank compartments and such.

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