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WhiskeyVictor36(at)aol.co
Guest

Posted: Thu Jan 22, 2009 12:57 pm Post subject: fabric rubbing on cage tubes

In a message dated 1/15/2009 10:51:00 P.M. Eastern Standard Time,  cristalclearwaters(at)gmail.com writes:

   	  Quote: 	
		     Have any of you ever seen anything similar to what I have attached here    in the photos?

When you build these planes is there any instruction to put    anything between the tubes and fabric?

   Cristal,

    

   Your pictures show what looks like a black, oily residue, forming    around the aluminum tubes.  I have seen this on my original style    FireStar a few times and cleaned it off with a de greaser.  It    always appeared after I spilled pre-mix fuel when topping off my fuel    tank.  That fuselage side fabric does a lot of 'drumming' when the engine    is running.

    

   The instructions for building did not say anything about gluing, rib    stitching or riveting the fabric to these tubes.  I suppose when I    applied the Polybrush coating, some of it did glue the fabric to the tube, but    it would have been just a narrow strip on the apex of the tube and the    drumming could have caused it to become loose.

    

   I believe John Haucks suggestion    to use the fabric rivets to secure the fabric to the aluminum faring    tubes is a good idea and I may even do this to my Kolb because it also is    beginning to show some signs of wearing a hole through the fabric.     

   Bill    Varnes

Original Kolb FireStar

Audubon  NJ

	


 Inauguration '09:  Get complete coverage from the nation's capital.

  [quote][b]

cristalclear13

Joined: 19 Sep 2007
Posts: 363
Location: Southeast Georgia

Posted: Thu Jan 22, 2009 1:42 pm Post subject: Re: fabric rubbing on cage tubes

 	  WhiskeyVictor36(at)aol.co wrote: 	
		  Your pictures show what looks like a black, oily residue, forming    around the aluminum tubes.  I have seen this on my original style    FireStar a few times and cleaned it off with a de greaser.  It    always appeared after I spilled pre-mix fuel when topping off my fuel    tank.  That fuselage side fabric does a lot of 'drumming' when the engine    is running.

    

   The instructions for building did not say anything about gluing, rib    stitching or riveting the fabric to these tubes.  I suppose when I    applied the Polybrush coating, some of it did glue the fabric to the tube, but    it would have been just a narrow strip on the apex of the tube and the    drumming could have caused it to become loose.

    

   I believe John Haucks suggestion    to use the fabric rivets to secure the fabric to the aluminum faring    tubes is a good idea and I may even do this to my Kolb because it also is    beginning to show some signs of wearing a hole through the fabric.     

   Bill    Varnes

Original Kolb FireStar

Audubon  NJ

	




Thank you for sharing that Bill, That sounds exactly like what I'm seeing.  Although I didn't spill any fuel, I did wash my plane and some of the water (and probably dirt and dust) probably ran down the inside and probably settled between the tubes and fabric contributing to the fretting corrosion.  



I've got a friend who helped me with some small fabric repairs when I first got the plane so maybe he can help me with this.



Thank you also John, Mike and Mike for your suggestions.  Now if I only had a shop with all these supplies and tools I'll need.

_________________
Cristal Waters
Kolb Mark II Twinstar Rotax 503 DCSI Sept 2007 - sold Sept 2012
Private Pilot Aug 2008
ELSA Repairman for N193Y April 2008
Rotax 2 stroke maintenance April 2009

rlaird

Joined: 10 Jan 2006
Posts: 373
Location: Houston

Posted: Thu Jan 22, 2009 2:18 pm Post subject: fabric rubbing on cage tubes

Cristal --

I recently learned how to do the Polyfiber system for a repair, and, it's not hard at all!  The only "special" tools you'll need are some pinking shears and a calibrated iron.  (Some people get away with calibrating their own iron, but I didn't feel very good about doing that, so I used one that came with temp-control dial..  And even then I didn't trust it, and used a digital thermometer to make sure it was at the right temp.)

Everything else is easy to come by.  The trick I learned -- for repairs... you wouldn't want to use them for an entire covering job -- is to use the disposable sprayers.   Here's a link:

http://store.fastcommerce.com/PaintProsUSA/prod-ff80808117344aab01175583b1ca6bf5.html

They were worth their weight in gold... Not only easy to use and inexpensive, but you don't have to buy or fool with the entire HVLP sprayers.

Buy the Polyfiber book and read it... read it twice!  It's worth the time.  If you're worried, then nail four boards together and "cover it" and play with the process needed...  The first time you do it, you might make a couple of minor mistakes... the 2nd time, you won't.  It's very easy.

Good luck!

  -- Robert

P.S.  You can also read my blog entries about my repair job:

http://blogs.chron.com/lightflight/archives/2008/08/repairing_fabri.html

 http://blogs.chron.com/lightflight/archives/2008/08/repairing_fabri_1.html

http://blogs.chron.com/lightflight/archives/2008/08/repairing_fabri_2.html

 http://blogs.chron.com/lightflight/archives/2008/09/repairing_fabri_3.html

You'll notice that I --didn't-- test the process first, and ended up with lumpy results... that's how I know to tell you to do a test covering first!  If I wasn't so lazy, I'd go back and re-do it (another big advantage of the Polyfiber system, is that you -can- undo it all).

On Thu, Jan 22, 2009 at 3:42 PM, cristalclear13 <cristalclearwaters(at)gmail.com (cristalclearwaters(at)gmail.com)> wrote:

 [quote]--> Kolb-List message posted by: "cristalclear13" <cristalclearwaters(at)gmail.com (cristalclearwaters(at)gmail.com)>

WhiskeyVictor36(at)aol.co wrote:

 > Your pictures show what looks like a black, oily residue, forming    around the aluminum tubes.  I have seen this on my original style    FireStar a few times and cleaned it off with a de greaser.  It    always appeared after I spilled pre-mix fuel when topping off my fuel    tank.  That fuselage side fabric does a lot of 'drumming' when the engine    is running.

   >

 >    The instructions for building did not say anything about gluing, rib    stitching or riveting the fabric to these tubes.  I suppose when I    applied the Polybrush coating, some of it did glue the fabric to the tube, but    it would have been just a narrow strip on the apex of the tube and the    drumming could have caused it to become loose.

   >

 >    I believe John Haucks suggestion    to use the fabric rivets to secure the fabric to the aluminum faring    tubes is a good idea and I may even do this to my Kolb because it also is    beginning to show some signs of wearing a hole through the fabric.

   >    Bill    Varnes

 > Original Kolb FireStar

 > Audubon  NJ

 >

 >

 >

 Thank you for sharing that Bill, That sounds exactly like what I'm seeing.  Although I didn't spill any fuel, I did wash my plane and some of the water (and probably dirt and dust) probably ran down the inside and probably settled between the tubes and fabric contributing to the fretting corrosion.

 I've got a friend who helped me with some small fabric repairs when I first got the plane so maybe he can help me with this.

 Thank you also John, Mike and Mike for your suggestions.  Now if I only had a shop with all these supplies and tools I'll need.

 --------

 Cristal Waters

 Kolb Mark II Twinstar

 Rotax 503 DCSI

 Read this topic online here:

http://forums.matronics.com/viewtopic.php?p=226229#226229

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_________________
~~~~~~~~~~~~~~~~~~~
Robert Laird
formerly: MkIIIc w/ 912ULS & Gyrobee
current: Autogyro Cavalon w/ 914ULS
Houston, TX area
http://www.Texas-Flyer.com

WhiskeyVictor36(at)aol.co
Guest

Posted: Thu Jan 22, 2009 8:34 pm Post subject: fabric rubbing on cage tubes

Robert,

  

 Thanks so much for informing us about this portable paint  sprayer.  Looks like it would be easy to use and clean up.

  

 Bill Varnes

  

  In a message dated 1/22/2009 5:18:51 P.M. Eastern Standard Time,  rlaird(at)cavediver.com writes:

  	  Quote: 	
		  The    trick I learned -- for repairs... you wouldn't want to use them for an entire    covering job -- is to use the disposable sprayers.   Here's a    link:



http://store.fastcommerce.com/PaintProsUSA/prod-ff80808117344aab01175583b1ca6bf5.html

	


 Inauguration '09:  Get complete coverage from the nation's capital.

  [quote][b]

williamtsullivan(at)att.n
Guest

Posted: Fri Jan 23, 2009 5:09 pm Post subject: Fabric rubbing on cage tubes

Cristal- I happened to look at my cage tubes today, and noticed a flat spot worn on one of the aluminum tubes.  The fabric is off for the re-build, but I remember seeing exactly what you describe.  I thought it was an oil stain, or some kind of mold.  By the looks of it, it was probably abrasion from the Dacron.  It's quite a flat spot, so good catch.  Fix it like the guys said.  you might even be able to feel a flat spot on the tube.  Dacron must be pretty strong stuff to do that to aluminum.

  

                                        Bill Sullivan

                                        Windsor Locks, Ct.

 [quote][b]

Possums

Joined: 03 Nov 2007
Posts: 247

Posted: Fri Jan 23, 2009 8:05 pm Post subject: Fabric rubbing on cage tubes

At 08:07 PM 1/23/2009, you wrote:

 	  Quote: 	
		     Cristal- I happened to look at my cage tubes today, and noticed a 

 flat spot worn on one of the aluminum tubes.  The fabric is off for 

 the re-build, but I remember seeing exactly what you describe.  I 

 thought it was an oil stain, or some kind of mold.  By the looks of 

 it, it was probably abrasion from the Dacron.  It's quite a flat 

 spot, so good catch.  Fix it like the guys said.  you might even be 

 able to feel a flat spot on the tube.  Dacron must be pretty strong 

 stuff to do that to aluminum.



                                        Bill Sullivan

                                        Windsor Locks, Ct.


	


don't think they use Dacron

_________________
Possum

Dana

Joined: 13 Dec 2007
Posts: 1047
Location: Connecticut, USA

Posted: Fri Jan 23, 2009 8:16 pm Post subject: Fabric rubbing on cage tubes

At 11:05 PM 1/23/2009, possums wrote:

 	  Quote: 	
		  don't think they use Dacron


	


Stits IS Dacron, as is Ceconite.  All three are trademark names for 

polyester fabric.



-Dana

--

  A day without sunshine is like, night.

Possums

Joined: 03 Nov 2007
Posts: 247

Posted: Fri Jan 23, 2009 8:26 pm Post subject: Fabric rubbing on cage tubes

At 08:07 PM 1/23/2009, you wrote:

 	  Quote: 	
		     Cristal- I happened to look at my cage tubes today, and noticed a 

 flat spot worn on one of the aluminum tubes.


	


I don't think you should have had a problem if it was done right to begin with.

You glue the fabric, shrink/iron the fabric.

When you dope or seal the fabric, put on the reinforcement tapes, 

spray the silver & paint,

it pretty much goes thru the fabric & cements it to those tubes.

Least that's what I thought.

Mines 11 years old.

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_________________
Possum

Possums

Joined: 03 Nov 2007
Posts: 247

Posted: Fri Jan 23, 2009 8:40 pm Post subject: Fabric rubbing on cage tubes

At 11:11 PM 1/23/2009, you wrote:

  	  Quote: 	
		  --> Kolb-List message posted by: Dana Hague <d-m-hague(at)comcast.net>



 At 11:05 PM 1/23/2009, possums wrote:



 

  	  Quote: 	
		  don't think they use Dacron 	


 Stits IS Dacron, as is Ceconite.  All three are trademark names for polyester fabric.

 	


  I think you might be wrong, I've used both on different Uls - My old 1983 CGS Hawk used Dacron coverings - right?? Like sail cloth?

 The Poly-Fiber method uses Poly-Brush followed by Poly-Spray, which includes a silver coat for UV protection and the final color coats for the desired color. 

 These products are essentially the same airplane dope as the adhesive and are completely compatible. 



 EkoFill by Stewart Systems is water-based with a high level of solids that will fill the weave of the Dacron fabric while including sufficient UV inhibitors to protect the fabric.

 but that is just an extra. 

     [quote][b]

_________________
Possum

ceengland(at)bellsouth.ne
Guest

Posted: Fri Jan 23, 2009 9:09 pm Post subject: Fabric rubbing on cage tubes

william sullivan wrote:

 	  Quote: 	
		     Cristal- I happened to look at my cage tubes today, and noticed a 

 flat spot worn on one of the aluminum tubes.  The fabric is off for 

 the re-build, but I remember seeing exactly what you describe.  I 

 thought it was an oil stain, or some kind of mold.  By the looks of 

 it, it was probably abrasion from the Dacron.  It's quite a flat spot, 

 so good catch.  Fix it like the guys said.  you might even be able to 

 feel a flat spot on the tube.  Dacron must be pretty strong stuff to 

 do that to aluminum.

  

                                        Bill Sullivan

                                        Windsor Locks, Ct.




	


Haven't followed this thread closely, but do have a comment about fabric 

wearing aluminum. It's likely not the covering doing the damage, but 

grit carried by the covering as it moves relative to the tube.



Most of the guys flying bigger experimentals know not to use nylon wire 

ties directly on motor mounts because they can eat through the 4130 

steel. Dirt & grit get embedded in the nylon & if it moves, it acts like 

a saw. This is a very real issue with any soft material moving against 

metal in an a/c; I've had a fabric covered starter cable cut through an 

aluminum oil drain-back tube on a Lyc.



Charlie

Dana

Joined: 13 Dec 2007
Posts: 1047
Location: Connecticut, USA

Posted: Sat Jan 24, 2009 6:46 am Post subject: Fabric rubbing on cage tubes

At 11:39 PM 1/23/2009, possums wrote:



 	  Quote: 	
		    I think you might be wrong, I've used both on different Uls - My old 

 1983 CGS Hawk used Dacron coverings - right?? Like sail cloth?

The Poly-Fiber method uses Poly-Brush followed by Poly-Spray...


	


Well, I should have been more precise.  The fabric you use in the Stits 

_process_, that you buy from Stits (Poly-Fiber, now) is polyseter 

fabric.  Same for Ceconite, same fabric, though you have to buy it from 

Ceconite for the process to be "legal".  I don't know if Stits and Ceconite 

do anything further to the base fabric (sizings or coatings) before selling 

it.  Dacron is just another trade name for polyester fabric made by Dupont 

Corporation, though we use it interchangeably (and incorrectly) whether it 

was actually manufactured by Dupont or not, and sailcloth is usually 

polyester... lots of other ultralights use polyester sails, but without the 

"process" coatings.  Same fabric, different process.



-Dana



--

  "A dress makes no sense unless it inspires men to want to take it off you."

slyck(at)frontiernet.net
Guest

Posted: Sat Jan 24, 2009 7:04 am Post subject: Fabric rubbing on cage tubes

and you can save money by using the generic dacron from ACS.  Works  

the same.

BB

On 24, Jan 2009, at 9:43 AM, Dana Hague wrote:

 	  Quote: 	

 At 11:39 PM 1/23/2009, possums wrote:

>  I think you might be wrong, I've used both on different Uls - My  

> old 1983 CGS Hawk used Dacron coverings - right?? Like sail cloth?

> The Poly-Fiber method uses Poly-Brush followed by Poly-Spray...

 Well, I should have been more precise.  The fabric you use in the  

 Stits _process_, that you buy from Stits (Poly-Fiber, now) is  

 polyseter fabric.  Same for Ceconite, same fabric, though you have  

 to buy it from Ceconite for the process to be "legal".  I don't  

 know if Stits and Ceconite do anything further to the base fabric  

 (sizings or coatings) before selling it.  Dacron is just another  

 trade name for polyester fabric made by Dupont Corporation, though  

 we use it interchangeably (and incorrectly) whether it was actually  

 manufactured by Dupont or not, and sailcloth is usually  

 polyester... lots of other ultralights use polyester sails, but  

 without the "process" coatings.  Same fabric, different process.

 -Dana

 --

  "A dress makes no sense unless it inspires men to want to take it  

 off you."

jbhart(at)onlyinternet.ne
Guest

Posted: Sat Jan 24, 2009 10:05 am Post subject: Fabric rubbing on cage tubes

At 11:08 PM 1/23/09 -0600, you wrote:

 	  Quote: 	
		  



Haven't followed this thread closely, but do have a comment about fabric 

wearing aluminum. It's likely not the covering doing the damage, but 

grit carried by the covering as it moves relative to the tube.



Most of the guys flying bigger experimentals know not to use nylon wire 

ties directly on motor mounts because they can eat through the 4130 

steel. Dirt & grit get embedded in the nylon & if it moves, it acts like 

a saw. This is a very real issue with any soft material moving against 

metal in an a/c; I've had a fabric covered starter cable cut through an 

aluminum oil drain-back tube on a Lyc.




	


Charlie, Cristal, and Kolbers,



One thing to remember is that iron oxide and aluminum oxide are both 

abrasives, where aluminum oxide is the champ.  This why if the fabric is 

fretting over aluminum tubing, a black powder will form.  Add a little water 

or oil and it will run down the fabric.  When you can see the black, it is 

the alumni oxide caught in the fabric that will rapidly wear or fret the 

aluminum tube over which the fabric has been stretched.



Since you cannot get away from the fabric contacting the aluminum tube oxide 

coating, the only way to stop the fretting is to make sure the fabric cannot 

move.  In Cristal's case I would blow the dust away from the tube and fabric 

and then lightly brush poly tack thinned with some MEK above the tube an on 

the inside of the fabric.  This combination should help to re attach the 

fabric to the tube.  Brushing it lightly will prevent a run down on the 

inside of the fabric that may show through.  Then I would follow up with a 

second brushing of full strength poly tack.  Then I would air brush the 

paint on the out side and go fly.



Snowing a little



Jack B. Hart FF004

Winchester, IN

cristalclear13

Joined: 19 Sep 2007
Posts: 363
Location: Southeast Georgia

Posted: Thu Feb 19, 2009 1:43 pm Post subject: Re: Fabric rubbing on cage tubes

I appreciate everyone's input on this.  I'm sorry it has taken me so long to follow up, but it has taken me a while to get out and work on it and then test it.  I used my shop vac on the inside where the fabric joins the tubing and cleaned up any loose dirt I could.  The outside oily substance I had already just wiped away when I first saw it.  Then I put some goop as a filler so that more substance (water, dirt, etc.)  wouldn't fall down between the fabric and tubing.  I put the goop only in a couple test areas that seemed to have a problem.

I've flown and flown and it is not doing it again anywhere, so here's hoping either one or both the cleaning and/or goop helped.  

I'll keep you informed (for those inquiring minds...whose initials are Carlos).

 



 	  jbhart(at)onlyinternet.ne wrote: 	
		  At 11:08 PM 1/23/09 -0600, you wrote:

 	  Quote: 	
		  



Haven't followed this thread closely, but do have a comment about fabric 

wearing aluminum. It's likely not the covering doing the damage, but 

grit carried by the covering as it moves relative to the tube.



Most of the guys flying bigger experimentals know not to use nylon wire 

ties directly on motor mounts because they can eat through the 4130 

steel. Dirt & grit get embedded in the nylon & if it moves, it acts like 

a saw. This is a very real issue with any soft material moving against 

metal in an a/c; I've had a fabric covered starter cable cut through an 

aluminum oil drain-back tube on a Lyc.

	


Charlie, Cristal, and Kolbers,



One thing to remember is that iron oxide and aluminum oxide are both 

abrasives, where aluminum oxide is the champ.  This why if the fabric is 

fretting over aluminum tubing, a black powder will form.  Add a little water 

or oil and it will run down the fabric.  When you can see the black, it is 

the alumni oxide caught in the fabric that will rapidly wear or fret the 

aluminum tube over which the fabric has been stretched.



Since you cannot get away from the fabric contacting the aluminum tube oxide 

coating, the only way to stop the fretting is to make sure the fabric cannot 

move.  In Cristal's case I would blow the dust away from the tube and fabric 

and then lightly brush poly tack thinned with some MEK above the tube an on 

the inside of the fabric.  This combination should help to re attach the 

fabric to the tube.  Brushing it lightly will prevent a run down on the 

inside of the fabric that may show through.  Then I would follow up with a 

second brushing of full strength poly tack.  Then I would air brush the 

paint on the out side and go fly.



Snowing a little



Jack B. Hart FF004

Winchester, IN

_________________
Cristal Waters
Kolb Mark II Twinstar Rotax 503 DCSI Sept 2007 - sold Sept 2012
Private Pilot Aug 2008
ELSA Repairman for N193Y April 2008
Rotax 2 stroke maintenance April 2009

JetPilot

Joined: 10 Jan 2006
Posts: 1246

Posted: Thu Feb 19, 2009 5:42 pm Post subject: Re: fabric rubbing on cage tubes

I use Goop for some areas in building model airplanes where I can not use a brittle glue.  Goop is incredibly strong and durable !  The only thing that seems to kill good is constant everyday exposure to the sun.  I bet that Goop inside will outlast the fabric !



Mike

_________________
"NO FEAR" - If you have no fear you did not go as fast as you could have !!!

Kolb MK-III Xtra, 912-S

ElleryWeld(at)aol.com
Guest

Posted: Thu Feb 19, 2009 6:06 pm Post subject: fabric rubbing on cage tubes

What in heck is wrong with using poly tack something  that we all know is compatible with the poly fiber material  

  

 Ellery

 do not archive

  

  In a message dated 2/19/2009 8:43:27 P.M. Eastern Standard Time,  orcabonita(at)hotmail.com writes:

  	  Quote: 	
		  -->    Kolb-List message posted by: "JetPilot"    <orcabonita(at)hotmail.com>



I use Goop for some areas in building    model airplanes where I can not use a brittle glue.  Goop is incredibly    strong and durable !  The only thing that seems to kill good is constant    everyday exposure to the sun.  I bet that Goop inside will outlast the    fabric !



Mike



--------

&quot;NO FEAR&quot; -  If    you have no fear you did not go as fast as you could have !!!



Kolb    MK-III Xtra, 912-S





Read this topic online    here:



http://forums.matronics.com/viewtopic.php?p=231137#231137

	


 A 100126575x1218822736x1201267884/aol?redir=http:%2F%2Fwww.freecreditreport.com%2Fpm%2Fdefault.aspx%3Fsc%3D668072%26hmpgID%3D62%26bcd%3DfebemailfooterNO62"> See yours in just 2 easy steps!

  [quote][b]

slyck(at)frontiernet.net
Guest

Posted: Thu Feb 19, 2009 6:42 pm Post subject: fabric rubbing on cage tubes

Nothing wrong with polytack.  Goop can be bought down at the corner store and is just as good if not better.It holds the 1/8" lexan wing fences on my MkIII.

BB



On 19, Feb 2009, at 9:04 PM, ElleryWeld(at)aol.com (ElleryWeld(at)aol.com) wrote:

[quote]  What in heck is wrong with using poly tack something that we all know is compatible with the poly fiber material 

  

 Ellery

 do not archive

  

  In a message dated 2/19/2009 8:43:27 P.M. Eastern Standard Time, orcabonita(at)hotmail.com (orcabonita(at)hotmail.com) writes:

  	  Quote: 	
		   href="http://www.matronics.com/Navigator?Kolb-List">http://www.matronics.com/Navigator?Kolb-List href="http://forums.matronics.com">http://forums.matronics.com href="http://www.matronics.com/contribution">http://www.matronics.com/contribution  [/b] 	
[b]

cristalclear13

Joined: 19 Sep 2007
Posts: 363
Location: Southeast Georgia

Posted: Thu Feb 19, 2009 6:58 pm Post subject: Re: fabric rubbing on cage tubes

 	  ElleryWeld(at)aol.com wrote: 	
		  What in heck is wrong with using poly tack something  that we all know is compatible with the poly fiber material  

  

 Ellery 	




Some people wanted to know what I did so I let everyone know.  Was it the best solution?  Probably not.  I'm not sure I like the way it looks on the outside where the goop bonded with the fabric.  But luckily I only put it in a couple small places.



Whoever did the fabric on the cage on this plane didn't follow standard procedures for poly-fiber.  They used automotive paint and didn't apply the silver coat for UV protection.  I will probably have to do a recovering of the cage soon enough.

_________________
Cristal Waters
Kolb Mark II Twinstar Rotax 503 DCSI Sept 2007 - sold Sept 2012
Private Pilot Aug 2008
ELSA Repairman for N193Y April 2008
Rotax 2 stroke maintenance April 2009

Ralph B

Joined: 14 Apr 2007
Posts: 367
Location: Mound Minnesota

Posted: Thu Feb 19, 2009 7:10 pm Post subject: Re: fabric rubbing on cage tubes

As an alternative, brushing polybrush and polytone with a paint brush instead of using a sprayer works pretty well. I painted everything on my Firestar wings with a roller and paint brush. It's not messy and there's no concern about over-spray. It makes adding patches and repairs easy.



Ralph B

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Ralph B

Kolb Kolbra 912uls
N20386
550 hours

John Hauck

Joined: 09 Jan 2006
Posts: 4639
Location: Titus, Alabama (hauck's holler)

Posted: Thu Feb 19, 2009 7:13 pm Post subject: fabric rubbing on cage tubes

> Whoever did the fabric on the cage on this plane didn't follow standard 

procedures for poly-fiber.  They used automotive paint and didn't apply the 

silver coat for UV protection.  I will probably have to do a recovering of 

the cage soon enough.

 	  Quote: 	
		  

 --------

 Cristal Waters


	




Cristal:



If it was mine, and auto paint had been used, I'd make sure fabric on all 

flying surfaces, especially the wings, were inspected and a punch tested.



Couple years ago I helped pull old fabric from a Kolb that had been finished 

with auto paint.  The fabric had little to no tear resistance.



I make it a habit never to mix products when covering an airplane with the 

Polyfiber process.



john h

mkIII

_________________
John Hauck
MKIII/912ULS
hauck's holler
Titus, Alabama

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