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Old Oct 16, 2012, 04:16 PM
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A newby's question about Hinge Tape

Hi Guys,

I have two newby questions about hinge tape please:

1) How does it differ from ordinary tape, and

2) What is it's purpose.

I know that people put it on the hinges of control surfaces (such as ailerons), but I'm not sure why. Is it to decrease turbulence over the joint, or hold the parts together if the hinges break, etc? I'm also unsure how it's different to ordinary tape.

Thanks in Advance
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Old Oct 16, 2012, 04:44 PM
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United States, NM, Las Cruces
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It is used to reinforce the joint and will even hold the hinge together if the foam hinge (or other actual plastic hinge breaks). It tends to be a little stronger and clearer than regular tape. I use regular tape (3M clear gift tape I think it is called) because it is cheaper and seems to work just as well for I what I use it for. I just put it on the underside of the hinge, so you can't see it anyways.
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Old Oct 16, 2012, 06:40 PM
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For Park Flyers, the tape can replace the hinges and hold the surfaces in place. It also seals the hinge line to stop air flow through it that makes control action less efficient. Lots of flexible tapes can be used, with package sealing tape one favorite. I've had best luck with a medical tape from 3M called "Blenderm", which DuBro repackages as Park Flyer Hinging Tape.
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Old Oct 16, 2012, 06:47 PM
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Last edited by Oldgzr; Oct 16, 2012 at 06:51 PM. Reason: DuPageJoe answered the question
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Old Oct 16, 2012, 10:06 PM
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Thanks for the info guys!
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Old Oct 17, 2012, 02:47 AM
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United States, MI, Monroe
Joined Jun 2009
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Quote:
Originally Posted by DuPageJoe View Post
For Park Flyers, the tape can replace the hinges and hold the surfaces in place. It also seals the hinge line to stop air flow through it that makes control action less efficient. Lots of flexible tapes can be used, with package sealing tape one favorite. I've had best luck with a medical tape from 3M called "Blenderm", which DuBro repackages as Park Flyer Hinging Tape.
The blenderm is really good hinge tape, soft and flexible, but really durable with good adhesion, still holding up after a few years on my first T -28. Really would not want to use anything stiffer.
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Old Oct 18, 2012, 10:59 AM
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Quote:
Originally Posted by Tony K View Post
The blenderm is really good hinge tape, soft and flexible, but really durable with good adhesion, still holding up after a few years on my first T -28. Really would not want to use anything stiffer.
I agree. I use it on the tail of my T28 since it has those weak hinges from factory. It seems to work very well. Like was said above you use it for hinges to replace or reinforce them on foam type planes. The packing tape works great for reinforcing other things like wing edges, bellies,etc... I have never used it for hinges though.
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Old Oct 18, 2012, 03:43 PM
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Regular packing tape will last at least 7 years - might last longer but I don't know yet.
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Old Oct 18, 2012, 03:52 PM
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FWIW, no matter the tape used, I go over the hing tape with a covering iron turned up just enough so it softens the glue in the tape, and then use it to push the tape into the foam. I've had some pretty impressive crashes where the taped hing holds up just fine. And as it's a foamie, so does the plane

And some tapes are better than others... As some have mentioned Blenderm is great, but I picked up package of 2 large rolls for $4.00 of Walgreen's brand "Blenderm" and it works as well. I also found genuine 3M office tape to be far superior to the generic variates.
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Old Oct 19, 2012, 11:22 PM
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I have 2 areas of concern with tape :

a) Introduce paint into the equation and most tapes lift ... and fail. Whether you apply before painting or the worst is after !

b) I never had problem with this years ago when folding back a surface, apply tape, fold surface other way and apply tape other side .. now it seems as soon as I do that .. the surface opens up a gap that is too sloppy.

I prefer proper hinges or mylar strip ... tape to seal the hinge line and provide back-up .. and of course as another says - repair when foam hinge gives out.

Nigel
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Old Oct 20, 2012, 09:03 AM
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United States, FL, DeLand
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Also, keep in mind that brand name matters, but 3M has a dozen specialized varieties of medical tape, some of them with names suspiciously close to Blenderm. On the advice of my wife, who assured me that it would be the same I used one of them on my Slow Stick. It was awful. The gummy adhesive just crawled all over my elevator and horizontal stabilizer, gumming everything up while allowing the tape to move wherever it wanted. I had to remove, degum and replace with workable tape!
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Old Oct 20, 2012, 03:56 PM
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For the very light indoor foamies I use Micropore, made by 3M and bought at a medical supply store. More of a paper type lightweight material. Been using for a few yrs with no problems. Takes paint well being of paper type.

Gord.
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