Shrink tape wrinkles


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Darren
Darren
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Anybody have any tips to get minimal wrinkles when shrink wrapping tubes?

I don't have wrinkles when i wrap the tube, just once its heated
VVS
VVS
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Hi, could you explain a little about how you are working, are you applying heat with a gun,heater,oven etc.
Darren
Darren
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Im using steel tube as mandrel, wet lay up with 3k braided sleeve then wrapping with shrink tape.

Then putting it in an oven at 130 degrees C 
Fasta
Fasta
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Sometimes with too much laminate thickness you can get a compression type wrinkle in the laminate but this is more to do with too much laminate and not really a fault of the tape.




Wet layups compress much more than a pre preg material will.




Chris Scott
Chris Scott
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I think that is just inherent of using shrink tape, you get the wrinkles/creases from when it overlaps.

Don't know what you have for equipment, but I just switched vacuum bagging the tube.

I wrap it once with a perforated release tab and then breather cloth.  I haven't perfected the bagging process yet, so it still requires some sanding afterwards, but I'm definitely much happier with it than with the heat shrink.

If you are sticking with the heat shrink, are you maintaining heat on it, or just with a heat gun?  I've noticed that once the tape cools it un-shrinks a little.
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