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Sealant for header tank fittings
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kitfoxsport(at)verizon.ne
Guest

Posted: Mon Sep 27, 2010 12:59 pm Post subject: Sealant for header tank fittings

I thought I had a good sealer for the header tank plastic to fittings, BUT as you can see from the attached photo. The tank has only been in use 3 months. Any idea on the best stuff to use

 

George

Kitfox Sport almost, but not yet!

do not archive

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larry huntley

Joined: 19 Jul 2008
Posts: 149

Posted: Mon Sep 27, 2010 1:35 pm Post subject: Sealant for header tank fittings

Proseal?   Larry

 [quote]   ---

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Vic Baker

Joined: 11 Jan 2006
Posts: 71
Location: Carson City, Nevada

Posted: Mon Sep 27, 2010 1:37 pm Post subject: Sealant for header tank fittings

Yikes!   John Mcbean can point you in the right  direction.    Used the sealant that came with my kit (2004  vintage) with success.      Better check those fuel  tank fittings also.

  

  

  

  

 Vic Baker

S7 912S Warp

Carson City, Nv

 [quote]   ---

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Series 7
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Pat Reilly

Joined: 06 Aug 2009
Posts: 345

Posted: Mon Sep 27, 2010 1:56 pm Post subject: Sealant for header tank fittings

George, The absolute best sealer for that application is Dow 730 Aircraft Spruce p/n: 09-00383. I finally broke down and bought a tube and haven't had a leak since. The only draw back is cost. It's over a $100 for a 3 oz tube with shipping. I keep it in the 

  refrigerator and hope it lasts. Someone on this list recommended it. I tried everything else 1st.

  

 Pat Reilly

 Mod 3 582 REBUILT again

 Rockford, IL

 On Mon, Sep 27, 2010 at 3:48 PM, Kitfox George <kitfoxsport(at)verizon.net (kitfoxsport(at)verizon.net)> wrote:

  	  Quote: 	
		     

 I thought I had a good sealer for the header tank plastic to fittings, BUT as you can see from the attached photo. The tank has only been in use 3 months. Any idea on the best stuff to use

 

George

Kitfox Sport almost, but not yet!

 do not archive  

	


-- 

Pat Reilly

Mod 3 582 Rebuild

Rockford,IL

  [quote][b]

kitfoxsport(at)verizon.ne
Guest

Posted: Tue Sep 28, 2010 1:54 pm Post subject: Sealant for header tank fittings

Thanks for the great info!

 

George

Kitfox Sport, almost, but not yet!

do not archive

Roger Lee

Joined: 10 Jan 2006
Posts: 1464
Location: Tucson, Az.

Posted: Tue Sep 28, 2010 8:33 pm Post subject: Re: Sealant for header tank fittings

A very good product that some of the race car driver's use, auto mechanics, aviation mechanics and SLSA Mfg's is "Hylomar" Universal Blue gasket and joint sealing compound.

Use a film on the bulkhead plates,t gaskets or fittings all the way around and both sides. This stuff is very sticky so what ever you touch it is there until you use a little lacquer thinner to remove it. Let it flash or dry for a few minutes and assemble. Do not apply a glob as it will squish out and get into the fuel system and it will cause you headaches. A little is good, a lot is not better. You can buy this Hylomar on line from several sources as it is very common. I tube should be plenty.

I use this on all my leaks as recommended by a few Mfg's and have never had a repeat leak.

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Guy Buchanan

Joined: 16 Jul 2006
Posts: 1204
Location: Ramona, CA

Posted: Wed Sep 29, 2010 7:44 am Post subject: Sealant for header tank fittings

George,

     After trying a half dozen sealants with the accompanying aggravation I finally broke down and bought the Pro-seal from ACS. It's the only one that I could get to work with 100LL.

 

            Guy Buchanan   Normal   Guy Buchanan   2   13   2010-09-24T17:53:00Z   2010-09-24T17:53:00Z   1   30   173   1   1   202   14.00          <![endif]-->        false            false   false   false      EN-US   X-NONE   X-NONE                                                                                             <![endif]-->                                                                                                                                                                                                                                                                                                                                                                                                                                <![endif]-->      /* Style Definitions */  table.MsoNormalTable 	{mso-style-name:"Table Normal"; 	mso-tstyle-rowband-size:0; 	mso-tstyle-colband-size:0; 	mso-style-noshow:yes; 	mso-style-priority:99; 	mso-style-parent:""; 	mso-padding-alt:0in 5.4pt 0in 5.4pt; 	mso-para-margin-top:0in; 	mso-para-margin-right:0in; 	mso-para-margin-bottom:10.0pt; 	mso-para-margin-left:0in; 	line-height:115%; 	mso-pagination:widow-orphan; 	font-size:11.0pt; 	font-family:"Calibri","sans-serif"; 	mso-ascii-font-family:Calibri; 	mso-ascii-theme-font:minor-latin; 	mso-hansi-font-family:Calibri; 	mso-hansi-theme-font:minor-latin; 	mso-bidi-font-family:"Times New Roman"; 	mso-bidi-theme-font:minor-bidi;}  <![endif]-->   <![endif]-->       <![endif]-->  

Guy Buchanan Kitfox IV-1200 / 582-C / Warp-3cs / 500+ hrs.[url=www.troop680.org][/url] 

  

 

    [quote][b]

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mikeperkins

Joined: 22 May 2007
Posts: 123

Posted: Wed Sep 29, 2010 8:17 am Post subject: Re: Sealant for header tank fittings

I used the Dow 730 sealant years ago after it was recommended to me by an aircraft-builder friend who worked for Dow. I managed to get Aircraft Spruce to stock it. Though it's expensive, I have not had a fuel leak on anything I've used it on, including tank cover plates and square-port fuel gauges. I saw another friend put it on a tank fitting and then pour fuel into the tank immediately, no leak. It's always worked well. I've had my tube for 20 years - it's still in the frig and still just as good as new. I look at the price like a complete "gasket kit" for a lifetime of fuel systems. Sky Geek has it today for $78.

dave

Joined: 22 Sep 2006
Posts: 1382

Posted: Thu Sep 30, 2010 1:27 am Post subject: Re: Sealant for header tank fittings

I use daily plumbers putty goo  in a can from home depot.

$4 or 5$ a can -- good for gas,diesel and oils read the can. 



Never had a leak but it has solved many in 35 year and Hundreds of planes.



DO NOT use Teflon tape!!

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Pat Reilly

Joined: 06 Aug 2009
Posts: 345

Posted: Thu Sep 30, 2010 6:40 pm Post subject: Sealant for header tank fittings

Mike, Thanks for that recommendation a few months ago. Dow 730 was the only sealant that didn't leak on my plastic header tank. I have mine in the refrigerator on your advice. Wish I'd known about Sky Geek. A/C was $20 more.

  do not archive

 Pat Reilly

 Mod 3 582 Reuilt

 Rockford, IL

 On Wed, Sep 29, 2010 at 11:17 AM, mikeperkins <michael.perkins(at)rauland.com (michael.perkins(at)rauland.com)> wrote:

  	  Quote: 	
		  --> Kitfox-List message posted by: "mikeperkins" <michael.perkins(at)rauland.com (michael.perkins(at)rauland.com)>

 

I used the Dow 730 sealant years ago after it was recommended to me by an aircraft-builder friend who worked for Dow. I managed to get Aircraft Spruce to stock it. Though it's expensive, I have not had a fuel leak on anything I've used it on, including tank cover plates and square-port fuel gauges. I saw another friend put it on a tank fitting and then pour fuel into the tank immediately, no leak. It's always worked well. I've had my tube for 20 years - it's still in the frig and still just as good as new. I look at the price like a complete "gasket kit" for a lifetime of fuel systems. Sky Geek has it today for $78.

 



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Pat Reilly

Mod 3 582 Rebuild

Rockford,IL

  [quote][b]

dholly

Joined: 19 Dec 2006
Posts: 40
Location: Upstate NY

Posted: Sat Oct 02, 2010 4:45 pm Post subject: Re: Sealant for header tank fittings

If you were to pose this question directly to Kitfox today their answer would be Permatex 9AR Tack & Seal Gasket Sealant. Worked for me.

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mikeperkins

Joined: 22 May 2007
Posts: 123

Posted: Sun Oct 03, 2010 9:25 am Post subject: Re: Sealant for header tank fittings

The datasheet for Permatex 9AR says it is not to be selected as a sealant for strong oxidizing materials. Unfortunately, that's what ethanol is. 



http://www.permatex.com/documents/tds/automotive/80938.pdf



- Mike

dholly

Joined: 19 Dec 2006
Posts: 40
Location: Upstate NY

Posted: Sun Oct 03, 2010 8:52 pm Post subject: Re: Sealant for header tank fittings

Hey Mike-



I'm no chemist but see the data sheet you linked says:



   "Chemical / Solvent Resistance

The product retains effective properties in contact with automotive fluids, such as motor oil, transmission fluids, alcohol and antifreeze solutions."



...and the card pack guide also says:



"A high tack, pliable gasketing sealant and plastic and metal pipe fitting sealant. Resists gasoline, gasohol, kerosene, oils, lubricants, water, antifreeze, and mild acids. Designed to resist high temperatures, vibration, fuels and oils of today's engines."



So... what to think? In any event, recommended by Kitfox and leak free to date (knock wood) on my M-III panel and wing tank fittings.

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mikeperkins

Joined: 22 May 2007
Posts: 123

Posted: Mon Oct 04, 2010 4:14 am Post subject: Re: Sealant for header tank fittings

What do I think? I think the Permatex folks might have inadvertently contradicted themselves a little bit. But Permatex stuff always seems to work for what they advertise on the package. So maybe you've found a good, inexpensive fuel thread sealant! Thanks for passing that along. 



Over the years, I've run many tests on different things in gasoline-filled jars. Most recently I made some little cork balls for sight-gauge floats and painted them with a dark polyurethane paint. Glad I tested them. The paint was fine, but the cork swelled such that the balls would have stuck in the sight tubes; back to the drawing board.

Tommy Walker

Joined: 12 Jan 2006
Posts: 442
Location: Anniston, AL 36207

Posted: Mon Oct 04, 2010 7:21 am Post subject: Re: Sealant for header tank fittings

Has anyone used SeaLube  or Fuel lube for the tank fittings?



I've used it before and never had a problem.



http://www.aircraftspruce.com/catalog/cspages/ezturnlube.php



Thanks,



Tommy Walker in Alabama

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N25A - Anniston, AL

Don McIntosh

Joined: 02 Jul 2007
Posts: 24
Location: Sandpoint, Idaho

Posted: Mon Oct 04, 2010 7:22 am Post subject: Re: Sealant for header tank fittings

I used the Permatex 9AR and I am having to redo all the fittings. One at a time they each let go. I am using Pro Seal and it works well. I do use 100 LL so it may make a difference.

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Don McIntosh
Kitfox Series 7
Jabiru 3300

lcfitt(at)sbcglobal.net
Guest

Posted: Mon Oct 04, 2010 12:42 pm Post subject: Sealant for header tank fittings

I have used Fuel Lube and still do for the plumbing fittings.  I didn't have 

the poly header tank, though.  Mine was an aluminum tank that a builder had 

made up for several of us as I was finishing my first project.



Lowell



--------------------------------------------------

From: "Tommy Walker" <twalker(at)cableone.net>

Sent: Monday, October 04, 2010 8:21 AM

To: <kitfox-list(at)matronics.com>

Subject: Re: Sealant for header tank fittings



 	  Quote: 	
		   



 Has anyone used SeaLube  or Fuel lube for the tank fittings?



 I've used it before and never had a problem.



 http://www.aircraftspruce.com/catalog/cspages/ezturnlube.php



 Thanks,



 Tommy Walker in Alabama



 --------

 Tommy Walker

 N8701  -  Anniston, AL





 Read this topic online here:



 http://forums.matronics.com/viewtopic.php?p=314615#314615

dholly

Joined: 19 Dec 2006
Posts: 40
Location: Upstate NY

Posted: Mon Oct 04, 2010 7:44 pm Post subject: Re: Sealant for header tank fittings

 	  Don McIntosh wrote: 	
		  I used the Permatex 9AR and I am having to redo all the fittings. One at a time they each let go. I am using Pro Seal and it works well. I do use 100 LL so it may make a difference. 	


That's interesting. Both you and Guy burn 100LL and the 9AR failed... I burn mogas and so far so good. Sure does make one wonder.

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mikeperkins

Joined: 22 May 2007
Posts: 123

Posted: Tue Oct 05, 2010 12:54 pm Post subject: Re: Sealant for header tank fittings

If it's all the same to you guys, I think I'll keep using my Dow 730. Seventeen years and not a hint of a leak.

Vic Baker

Joined: 11 Jan 2006
Posts: 71
Location: Carson City, Nevada

Posted: Tue Oct 05, 2010 1:11 pm Post subject: Sealant for header tank fittings

I'm with Mike on this one.  Just ordered the Dow 730.  A fuel leak is 

unacceptable.



Vic Baker

S7 912S Warp

Carson City, Nv

---

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