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Patching Hanger Rash

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peteohms

Joined: 31 Oct 2007
Posts: 224
Location: Leander, TX

Posted: Thu Apr 10, 2008 5:11 pm Post subject: Patching Hanger Rash

Ok, got my new (to me) Kitfox III home and need to fix a couple small holes 

in the side of the fuselage.  The plane was painted with Durethane.  Now I'd 

like to just put a round patch on the inside to prevent the holes from 

growing and maybe later do something to the ouside,  What should I use to 

install the inside patch.  I figure some hardware store urethane.  Any other 

suggestions? What will I need to do when I get around to fixing the outside?



Pete

Kitfox III N73BH

Hell Paso, TX

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_________________
Pete
Leander, TX
Kitfox III, 912ul, Grove

kitfoxpilot(at)msn.com
Guest

Posted: Fri Apr 11, 2008 3:18 am Post subject: Patching Hanger Rash

You want to use a small amount of poly tac and glue a silver dollar size patch on the inside.

  

 Ray



 	  Quote: 	
		   From: apeterchristensen(at)sbcglobal.net

 To: kitfox-list(at)matronics.com

 Subject: Patching Hanger Rash

 Date: Thu, 10 Apr 2008 19:08:01 -0600

 

 --> Kitfox-List message posted by: "Pete Christensen" <apeterchristensen(at)sbcglobal.net>

 

 Ok, got my new (to me) Kitfox III home and need to fix a couple small holes 

 in the side of the fuselage. The plane was painted with Durethane. Now I'd 

 like to just put a round patch on the inside to prevent the holes from 

 growing and maybe later do something to the ouside, What should I use to 

 install the inside patch. I figure some hardware store urethane. Any other 

 suggestions? What will I need to do when I get around to fixing the outside?

 

 Pete

 Kitfox III N73BH

 Hell Paso, TX 

 

 <========================> 

 

 


	


Going green? See the top 12 foods to eat organic.  [quote][b]

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Float Flyr

Joined: 19 Jul 2006
Posts: 2704
Location: Campbellton, Newfoundland

Posted: Fri Apr 11, 2008 5:00 am Post subject: Patching Hanger Rash

Pete"



First thing to do is to check out the Durethane system. Patch the hole from

the outside with a minimum of 1 inch border, 2" on top of wings using what

they (Durethane) recommends.  If that system is similar to Randolph you will

have to remove the finish coat before adhering the patches to outside of the

plane.  When the patch is installed and shrunk depending on it's size you

may want to go over the edge of the repair with tape.  Replace the original

finish.



If you have a lot of small holes in one area it may be neater and easier to

remove a whole section of cloth and replace it.  I 

I hope it's on a white area... colour matching can be a bear!



Noel



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Noel Loveys
Kitfox III-A
Aerocet 1100 Floats

Tom Jones

Joined: 12 Mar 2006
Posts: 752
Location: Ellensburg, WA

Posted: Fri Apr 11, 2008 6:21 am Post subject: Re: Patching Hanger Rash

 	  peteohms wrote: 	
		  Ok, got my new (to me) Kitfox III home and need to fix a couple small holes 

in the side of the fuselage.  The plane was painted with Durethane.  Now I'd 

like to just put a round patch on the inside to prevent the holes from 

growing and maybe later do something to the ouside,  What should I use to 

install the inside patch.  I figure some hardware store urethane.  Any other 

suggestions? What will I need to do when I get around to fixing the outside?



Pete

Kitfox III N73BH

Hell Paso, TX 	




Pete, I am not familiar with Durethane.  Is that just the paint and does the fabric system look like poly fiber?  If it is poly fiber it is very easy to patch small holes from the inside.  Make a wood frame like a picture frame.  Staple a piece of fabric on the frame.  Shrink the fabric with an iron at 300 to 350 degrees.  Cur out silver dollar size patches with pinking shears.  Attach the patches to the inside of the fabric with poly brush.



Try to find someone in your area that has done some covering and has the poly fiber supplies on hand.  It would be kind of expensive to purchase.  I can send send you some fabric in the mail if you need some.  I have lots of good sized scraps left over you can have.

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Tom Jones
Classic IV
503 Rotax, 72 inch Two blade Warp
Ellensburg, WA

peteohms

Joined: 31 Oct 2007
Posts: 224
Location: Leander, TX

Posted: Fri Apr 11, 2008 7:36 am Post subject: Patching Hanger Rash

Thanks Tom,



I have a local friend with all the supplies.  It is initially poly fiber. 

Sounds like a good way to go.



Pete

---

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Pete
Leander, TX
Kitfox III, 912ul, Grove

n85ae

Joined: 14 Mar 2007
Posts: 403

Posted: Fri Apr 11, 2008 9:19 am Post subject: Re: Patching Hanger Rash

DON'T try to polytak a patch underneath, unless you plan to repaint. I tried

that under aerothane, and what a mess. The aerothane was fine, but the polybrush/polyspray under it melted which made the aerothane blister and

bubble up all over. 



Jeff

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Float Flyr

Joined: 19 Jul 2006
Posts: 2704
Location: Campbellton, Newfoundland

Posted: Fri Apr 11, 2008 7:02 pm Post subject: Patching Hanger Rash

That is why this morning I said to remove the finish coats and dope the patch onto the outside of the hole.  Then shrink the patch and finish as normal.  Also if there are several holes in the same area it is much cleaner to remove the whole area.  E.g. for three or four holes together on the top of a wing remove a strip inside the ribs across the whole top of the wing.  When the patch is applied and taped  You won't even notice it.  

   

Depending on the hole it is also possible, even advisable to stitch up the wing with a herringbone stitch and cover it with a tape which can be shrunk and finished.  

   

Trying to glue pre-finished pieces of cloth inside a wing or rudder... good luck... you’ll need it!    

   

   

[img]cid:image001.jpg(at)01C89C33.FBCB02B0[/img]  

   

Noel Loveys  

Campbellton, NL, Canada  

CDN AME intern, PP-Rec  

C-FINB, Kitfox III-A  

582 B box, Ivo IFA, Aerocet 1100 floats  

[url=noelloveys(at)yahoo.ca]noelloveys(at)yahoo.ca[/url]  

   

   

   

   

   

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Noel Loveys
Kitfox III-A
Aerocet 1100 Floats

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