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1. 08:39 AM - Re: tank repair (Richard Trickel)
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Mike
Now that you found the leak.- Put a vacumn pressure on the tank.- Don
=B4t worry about seeing the ribs when you do this.- <You can control the
vacumn by putting something to release the pressure a little.- Mix a smal
l amount of epoxy and warm it up a little so that it is more watery.- app
ly to the leak area spending some time to keep reappling.- as your applyi
ng the last of-the -resin bleed off the vacumn and do a final applicati
on.- Allow to dure and test.-
Rich
--- On Wed, 1/13/10, Mike Pienaar <mjpienaar@shaw.ca> wrote:
From: Mike Pienaar <mjpienaar@shaw.ca>
Subject: Re: KIS-List: Fuel tank
Hi All,
Found my leak to-day quite by accident. In desperation I covered the entire
wing with dishwashing liquid where I thought the leak could be (that shoul
d give you a clue). Nothing.
While I was hosing the wing down to get rid of the soap I noticed bubbles a
t the end of the front spar, 4 inches from the tank. Air was travelling thr
ough the foam core of the spar and exiting at the end.
The question now is do I open the tank and re-coat it inside or do I live w
ith gas soaked foam in the spar, all comments will be appreciated. My initi
al feeling is to live with the situation as the major surgery involved to c
ut each bay open and reclose it may be worse
Thanks for the help
Mike
----- Original Message ----- From: <bakerocb@cox.net>
Sent: Wednesday, January 13, 2010 11:15 AM
Subject: Re: KIS-List: Fuel tank
>
> 1/13/2010
>
> Hello Mike, You quoted:- "Do not apply over old epoxies or other previo
usly
> applied coatings. "
>
> I think that you have to view that as written by some lawyer. Obviously,
if
> there is a primer or base coating on the substrate that is not properly
> adhered then any further coating will also be not be properly adhered to
the
> substrate.
>
> Realize that our KIS moldings have been made from pre impregnated (with
> epoxy) fiber glass. So all of us that have successfully used Jeffco 9700
FCR
> on the interior of our wing fuel tanks have, in effect, applied the Jeffc
o
> 9700 FCR over a previously applied coating.
>
> Some of us have even applied additional laminating resin over the interio
r
> surface before applying the Jeffco 9700 FCR.
>
> 'OC' Says: "The best investment we can make is the effort to gather and
> understand knowledge."
>
> ========================
====================
>
> ----- Original Message ----- From: "Mike Pienaar" <mjpienaar@shaw.ca>
> To: <kis-list@matronics.com>
> Sent: Wednesday, January 13, 2010 1:20 PM
> Subject: Re: KIS-List: Fuel tank
>
>
> Hi
>
> I'm thinking of cutting a hole in each bay and then resealing from the
> inside and then repairing the hole again.
>
> The reference that OC gave
>
> http://wiki.velocityxl.com/index.php?title=Jeffco_Fuel_Tank_Sealer
>
> says: "Do not apply over old epoxies or other previously applied coatings
. "
>
> I cannot get hold of Jeffco, there is no Jeffco website and the phone num
ber
> that is listed in the yellow pages is non existent. so if anybody has a
> number for Jeffco I would appreciate it
>
> Thanks
>
> Mike
>
>
>
>
>
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