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Old 09-29-2019, 06:03 AM
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Best way to repair a puncture in covering

Need advice please on repairing a puncture wound (only one side). I can get to the backside and was thinking of using a patch of covering on the inside with trim solvent and when dry iron the outside with medium heat(?).


Or use the iron on the inside but then the covering will be adhesive side to adhesive side. I haven't done that before, but I think it would be a wrinkled mess.
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Old 09-29-2019, 03:19 PM
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I have ways of doing this that are a bit ugly. But if you want to do this with the least disturbance and can do so from inside, how about this experiment? Take some white large enough to cover the area, leave the protective layer on it, place it on cardboard proctive layer against the cardboard (to prevent sticking) and press it under the damage from inside. Apply a bit of heat outside and you would have covering over covering, no patch edges, and if the protective layer can be removed from inside at this point it's a plus.
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Old 09-29-2019, 03:47 PM
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Old 09-29-2019, 10:48 PM
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Uhmmm... Ok... Do these pics help?

I created a possible repair in my head. I can't get a picture of my thoughts at the moment. Sorry!
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Old 09-30-2019, 09:08 AM
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Quote:
Originally Posted by KMatch View Post
I have ways of doing this that are a bit ugly. But if you want to do this with the least disturbance and can do so from inside, how about this experiment? Take some white large enough to cover the area, leave the protective layer on it, place it on cardboard proctive layer against the cardboard (to prevent sticking) and press it under the damage from inside. Apply a bit of heat outside and you would have covering over covering, no patch edges, and if the protective layer can be removed from inside at this point it's a plus.
KMatch
I like your suggestion and I'll give it a try. Pics to follow.
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Old 09-30-2019, 09:13 AM
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Since you can reach it I have used a very thin piece of balsa. Gives something to stick to.
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Old 09-30-2019, 09:24 AM
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I would back it with a piece of balsa for the covering to lay flat on. Then it’s either
Recover with the same color and pattern in that area or place your favorite decal. A properly placed decal can cover just about every tear/seam.
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Old 09-30-2019, 09:55 AM
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I suggest something other than balsa simply for it to mold to the airfoil shape with a little pressure before heat is applied. Plus, it may (will) find some adhesive from the existing covering so prepare for whatever you use to get attached. Pulling it away may cause more covering damage.

Maybe a larger section of covering backing laid inside to cover adhesive?
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