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Does Coating the inside of the fuseloge make the Covering Come off

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Does Coating the inside of the fuseloge make the Covering Come off

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Old 10-03-2017, 11:28 AM
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Basil Yousif
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Default Does Coating the inside of the fuseloge make the Covering Come off

I have had many ARF's and Scratch built planes over the years. I cote all of them on the inside with Marine Grade 2 part flexable Epoxy mix that is used for fiber glassing. They are very strong but the Plastic Coating - Monocote, Ultracote -etc on the outside of the fuselage starts peeling off the plane.

These are the planes that survived many years one is 15 years old the other is 8 years old and both are mustangs. Can applying the epoxy to the inside of the fuselage be causing the covering to come off or is it just age and fuel sprays.

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Old 10-03-2017, 12:30 PM
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Coating the inside with epoxy does NOT cause covering films to peel. It will fuel proof the interior which is a factor in your planes lasting so long. If the epoxy is applied to the cut edge of the film seal the edge and discourage peeling at the edge but I can't think of anything that will stop the film from aging which is the real culprit of the film peeling. The way they are sStored can affect the way the film ages, violent temperature swings and excessive exposure to sun light can really affect your plastic film coverings in the long haul.
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Old 10-03-2017, 02:26 PM
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I have to agree with OKC, it's age and temperature. All adhesives, no matter what kind, have a usable life, both on the shelf and in actual use. Since the wood used to build expands and contracts with heat and moisture(aka humidity or lack there of), the adhesive on the film can be stressed considerably. The epoxy, due to it's lower expansion rate, changes the way the wood expands and contracts, making the film's adhesive work that much harder. Over time, the adhesive starts to fail, allowing the film to work loose and, as it does so, it peels off. I'm not saying using the epoxy is bad, far from it. I coat everything I build, boats AND PLANES with epoxy ANYWHERE fuel or moisture COULD get to
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Old 10-03-2017, 03:37 PM
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That's probably it here in Sacramento California it gets around 105 degrees and the airplanes are in the Garage. Thanks for the info!! I'll move my best planes in the house - My wife will love that!!!
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Old 10-03-2017, 05:25 PM
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Originally Posted by Basil Yousif View Post
I'll move my best planes in the house - My wife will love that!!!
She'll like that about as much as mine likes having my boats, both running and under construction, in the living room and dining room in our house
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Old 10-04-2017, 04:48 PM
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You know how to get more Models in your house - buy her a Diamond Ring!!
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Old 10-04-2017, 04:59 PM
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I've already bought her more real jewelry than she can wear so that won't work anymore
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