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proseal in the horizontal stab

https://www.murphybuilders.net/viewtopic.php?f=1&t=2972

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proseal in the horizontal stab

Posted: Fri Feb 17, 2012 10:56 pm
by Nielsenbe
I was just reading through the 3500 mods book. It says to use thinned proseal
between two of the pieces to prevent corrosion. I think it's a metal ear and
aluminum spar. Will the standard primer not protect this? I just have the
tail kit and didn't want to get proseal until a year and a half from now when
I MIGHT be ready for it. Is there some reason I should use proseal? Thanks,
Brad



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proseal in the horizontal stab

Posted: Fri Feb 17, 2012 10:56 pm
by Bob Patterson
Hi Brad !

Only reason I can think of is that Brian, in Tech Support,
REALLY likes to use proseal everywhere !! ;-) :-)
It REALLY DOES <STICK> ! - good for durability in vibration,
but VERY difficult to separate if you ever want to repair.

I think you'll be fine with lots of Polyfiber Epoxy Primer,
assembled wet ..... (<I> like to use <it> everywhere !! ;-) :-) )

Just a matter of personal preferences here.

......bobp

-------------------------------orig.------------------------------------
At 04:09 PM 4/24/03 EDT, you wrote:
I was just reading through the 3500 mods book. It says to use thinned proseal
between two of the pieces to prevent corrosion. I think it's a metal ear and
aluminum spar. Will the standard primer not protect this? I just have the
tail kit and didn't want to get proseal until a year and a half from now when
I MIGHT be ready for it. Is there some reason I should use proseal? Thanks,
Brad



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proseal in the horizontal stab

Posted: Fri Feb 17, 2012 10:56 pm
by Wayne G. O'Shea
DITTO!

Just make sure that the Epoxy is wet when you are doing final assembly.
Proseal does give you some marginal added strength, but I'll tell you if
you've ever tried to disassemble mating parts that where scotchbrited and
assembled wet with EP420 there isn't much difference! Assembling wet insures
that you will keep the water out when it dries. Putting together two panels
or fittings after the Epoxy (or similar corrosion protection) has dried
allows the moisture to wick in between the parts and start the corrosion
processs OR FROST/ICE DAMAGE!

Cheers,
Wayne

----- Original Message -----
From: "Bob Patterson" <apat@istar.ca>
To: <murphy-rebel@dcsol.com>
Sent: Thursday, April 24, 2003 4:45 PM
Subject: Re: proseal in the horizontal stab

Hi Brad !

Only reason I can think of is that Brian, in Tech Support,
REALLY likes to use proseal everywhere !! ;-) :-)
It REALLY DOES <STICK> ! - good for durability in vibration,
but VERY difficult to separate if you ever want to repair.

I think you'll be fine with lots of Polyfiber Epoxy Primer,
assembled wet ..... (<I> like to use <it> everywhere !! ;-) :-) )

Just a matter of personal preferences here.

......bobp

-------------------------------orig.------------------------------------
At 04:09 PM 4/24/03 EDT, you wrote:
I was just reading through the 3500 mods book. It says to use thinned
proseal
between two of the pieces to prevent corrosion. I think it's a metal ear
and
aluminum spar. Will the standard primer not protect this? I just have the
tail kit and didn't want to get proseal until a year and a half from now
when
I MIGHT be ready for it. Is there some reason I should use proseal?
Thanks,
Brad


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proseal in the horizontal stab

Posted: Fri Feb 17, 2012 10:56 pm
by Murray and Carol Cherkas
Brad:

I questioned Brian Godden at Arlington re: sealing skins. I may some day be
on floats in salt water. With Brian's blessing I preped, alodined and primed
the skins,let dry then put "Sikoflex 1A" between mating surfaces.I did this
on the fuselodge sides and bottom.Felt rock solid when finished.If you do
this,use lots of cleco's and pull the rivets slowly so you squeeze the skins
tightly together allowing time for the Sikoflex to squeeze out.

This is not _ _ _'s word. Confirm with MAM first.

Good Luck

Murray

-----Original Message-----
From: mike.davis@dcsol.com [mailto:mike.davis@dcsol.com]On Behalf Of
nielsenbe@aol.com
Sent: Thursday, April 24, 2003 1:09 PM
To: murphy-rebel@dcsol.com
Subject: proseal in the horizontal stab


I was just reading through the 3500 mods book. It says to use thinned
proseal
between two of the pieces to prevent corrosion. I think it's a metal ear and
aluminum spar. Will the standard primer not protect this? I just have the
tail kit and didn't want to get proseal until a year and a half from now
when
I MIGHT be ready for it. Is there some reason I should use proseal? Thanks,
Brad



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