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Float Sealer

Posted: Fri Feb 17, 2012 4:22 pm
by Mike Davis
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To: <murphy-rebel@dcsol.com> (Murphy Rebel)
From: Bob Patterson <bob.patterson@canrem.com>
Subject: Re: Float Sealer
Message-Id: <E0zTci2-00057Y-00@mail2.toronto.istar.net>
Date: Wed, 14 Oct 1998 22:00:10 -0400


It does clean up with a solvent - I think they were using straight
MEK (nasty stuff!). As far as I know, it IS paintable ...

Why do you want to fill the outside mandrel holes ?? This sounds
like
it would add a lot of weight, and be prone to falling out over time. One of
the builders did fill them with epoxy chromate, using a syringe, but it took
several repeats ... a LOT of work !

There should be NO inside mandrel holes, because the floats are
now built using tank rivets - a solid end.

The guys up here have just sprayed on a good coat of primer first,
then painted. If you use a High Volume-Low Pressure sprayer, this works
great - the old-fashioned high pressure sprayers tended to blow so hard
that the paint went right out of the holes again, instead of staying there
!!

The majority of floats are NOT painted - for fresh water, this is
not a big problem. They wash up nicely using automotive wheel spray polish.
Painting them looks nice, but adds a lot of useless weight. Unless they are
VERY well prepped, sooner or later the paint will chip off, and re-painting
just adds more weight...

Maybe you could fly 'em for a season, then decide - if nothing else,
this will help de-grease them thoroughly. :-)

....bobp
---------------------------------orig.------------------------------
At 12:59 PM 10/13/98 -0400, you wrote:
Hi Bob,
Do you know if this stuff is paintable? Also how does it clean up?
Solvent? I'm still looking for something to wipe over the rivet rows to
fill the mandral holes. I want something I can wipe on and then wipe off
the excess with a rag. I don't want to have to fill each one individually.

Joel






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

-----Original Message-----
From: Bob Patterson <bob.patterson@canrem.com>
To: Murphy Rebel <murphy-rebel@dcsol.com>
Date: Monday, October 12, 1998 10:47 PM
Subject: Float Sealer

The sealer that I discovered in Newfoundland a few years ago is
called: SIKA FLEX
they are at: 22211 Telegraph Rd., Southfield, MI 48034
sorry, don't have a 'phone no.

There are several curing times available - the guys down east
usually
use the #241, which has an 8 hour cure, or the #240, which gives you 24
hours.
It comes in a tube for a regular caulking gun, in gray or black.

Float Sealer

Posted: Fri Feb 17, 2012 4:22 pm
by Mike Davis
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From: "Joel Jacobs" <jj@netexp.net>
To: "Murphy Rebel" <murphy-rebel@dcsol.com>
Subject: Re: Float Sealer
Date: Thu, 15 Oct 1998 16:24:54 -0400
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-----Original Message-----
From: Bob Patterson <bob.patterson@canrem.com>
To: Murphy Rebel <murphy-rebel@dcsol.com>
Date: Wednesday, October 14, 1998 10:09 PM
Subject: Re: Float Sealer

It does clean up with a solvent - I think they were using straight
MEK (nasty stuff!). As far as I know, it IS paintable ...

Why do you want to fill the outside mandrel holes ?? This sounds
like
it would add a lot of weight, and be prone to falling out over time. One of
the builders did fill them with epoxy chromate, using a syringe, but it
took
several repeats ... a LOT of work !

There should be NO inside mandrel holes, because the floats are
now built using tank rivets - a solid end.
Hi Bob,

Looks like we got our wires crossed a little - I'm not building floats. I
want to fill the mandrel holes on the AIRPLANE. When it rains outside, I
don't want it raining inside too! I know I dipped the rivets in chromate
and all and theoretically they shouldn't leak, but after it's painted is not
the time to test that theory - besides, don't you think it would look better
with the mandrel holes fillled? It would take such a small amount of filler
in each rivet. I doubt it would add more than a pound to the airframe.

Joel


The guys up here have just sprayed on a good coat of primer first,
then painted. If you use a High Volume-Low Pressure sprayer, this works
great - the old-fashioned high pressure sprayers tended to blow so hard
that the paint went right out of the holes again, instead of staying there
!!
The majority of floats are NOT painted - for fresh water, this is
not a big problem. They wash up nicely using automotive wheel spray polish.
Painting them looks nice, but adds a lot of useless weight. Unless they are
VERY well prepped, sooner or later the paint will chip off, and re-painting
just adds more weight...

Maybe you could fly 'em for a season, then decide - if nothing else,
this will help de-grease them thoroughly. :-)

....bobp
---------------------------------orig.------------------------------
At 12:59 PM 10/13/98 -0400, you wrote:
Hi Bob,
Do you know if this stuff is paintable? Also how does it clean up?
Solvent? I'm still looking for something to wipe over the rivet rows to
fill the mandral holes. I want something I can wipe on and then wipe off
the excess with a rag. I don't want to have to fill each one
individually.
Joel






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

-----Original Message-----
From: Bob Patterson <bob.patterson@canrem.com>
To: Murphy Rebel <murphy-rebel@dcsol.com>
Date: Monday, October 12, 1998 10:47 PM
Subject: Float Sealer

The sealer that I discovered in Newfoundland a few years ago is
called: SIKA FLEX
they are at: 22211 Telegraph Rd., Southfield, MI 48034
sorry, don't have a 'phone no.

There are several curing times available - the guys down east
usually
use the #241, which has an 8 hour cure, or the #240, which gives you 24
hours.
It comes in a tube for a regular caulking gun, in gray or black.



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Float Sealer

Posted: Fri Feb 17, 2012 4:22 pm
by Mike Davis
Received: from [137.186.227.215] (helo=ms02-215.tor.istar.ca)
by mail2.toronto.istar.net with smtp (Exim 1.92 #2)
for murphy-rebel@dcsol.com
id 0zTwVt-00049y-00; Thu, 15 Oct 1998 19:08:58 -0400
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To: <murphy-rebel@dcsol.com> (Murphy Rebel)
From: Bob Patterson <bob.patterson@canrem.com>
Subject: Re: Float Sealer
Message-Id: <E0zTwVt-00049y-00@mail2.toronto.istar.net>
Date: Thu, 15 Oct 1998 19:08:58 -0400


I can absolutely guarantee you that it WILL NOT rain inside !! If
the rivets were dipped in epoxy zinc chromate and installed wet, the
mandrels are SEALED. The HVLP painting method definitely fills the hole
from the top, so you won't even get rust on the ends of the mandrels.

Rebel # 001 has sat outside all year for most of its life -
over 8 years so far, and it DOESN'T drip inside. There ARE a few (very few)
rivets showing rusty mandrels - this is because it was painted in a hurry
with a high pressure gun - the pressure blew the paint right out of the
rivets in a FEW places (like maybe 3 - 5 rivets) !

Rebel # 068 sat outside UNPAINTED for about 3 years - NO drips !!
There was a little green trim paint on the leading edges, but the rest
was bare..

I don't know of anyone who dipped his rivets who has leaks inside
through the rivets. How about it guys ??? Anybody out there who HAS a
problem ???? That's what this forum is for ...

Gliders are always trying for smooth wings, and some people use
filler on metal wings to contour them - it invariably cracks & falls out
over time (can take years). This means re-sanding & re-filling. No matter
what you do, it will be a lot of work, and likely continue to be extra
work for maintenance.

The syringe method with epoxy is effective - the fellow who did
this got a few rivets that looked like regular solid rivets - BUT it
took HUNDREDS of hours to do. (He used this as a 'filler' when people
wandered into the hangar to 'supervise' - he'd hand them a syringe full
of epoxy !! Most left after one refill ....). It took at least 3 (!)
fillings of the rivet to get a good top - the epoxy contacts as it cures.
I do know of builders who used body filler, 'plastic metal', etc.
- no reports it was any better.

If you're worried about leaks - it's NOT necessary. If you want
to do it for looks - go ahead... I don't know of any EASY way, though !

....bobp

---------------------------orig.---------------------------------

At 04:24 PM 10/15/98 -0400, you wrote:
Hi Bob,

Looks like we got our wires crossed a little - I'm not building floats. I
want to fill the mandrel holes on the AIRPLANE. When it rains outside, I
don't want it raining inside too! I know I dipped the rivets in chromate
and all and theoretically they shouldn't leak, but after it's painted is
not
the time to test that theory - besides, don't you think it would look
better
with the mandrel holes fillled? It would take such a small amount of
filler
in each rivet. I doubt it would add more than a pound to the airframe.

Joel

-----Original Message-----
From: Bob Patterson <bob.patterson@canrem.com>
To: Murphy Rebel <murphy-rebel@dcsol.com>
Date: Wednesday, October 14, 1998 10:09 PM
Subject: Re: Float Sealer

It does clean up with a solvent - I think they were using straight
MEK (nasty stuff!). As far as I know, it IS paintable ...

Why do you want to fill the outside mandrel holes ?? This sounds
like
it would add a lot of weight, and be prone to falling out over time. One
of
the builders did fill them with epoxy chromate, using a syringe, but it
took
several repeats ... a LOT of work !

There should be NO inside mandrel holes, because the floats are
now built using tank rivets - a solid end.

The guys up here have just sprayed on a good coat of primer first,
then painted. If you use a High Volume-Low Pressure sprayer, this works
great - the old-fashioned high pressure sprayers tended to blow so hard
that the paint went right out of the holes again, instead of staying there
!!
The majority of floats are NOT painted - for fresh water, this is
not a big problem. They wash up nicely using automotive wheel spray
polish.
Painting them looks nice, but adds a lot of useless weight. Unless they
are
VERY well prepped, sooner or later the paint will chip off, and
re-painting
just adds more weight...

Maybe you could fly 'em for a season, then decide - if nothing
else,
this will help de-grease them thoroughly. :-)

....bobp
---------------------------------orig.------------------------------
At 12:59 PM 10/13/98 -0400, you wrote:
Hi Bob,
Do you know if this stuff is paintable? Also how does it clean up?
Solvent? I'm still looking for something to wipe over the rivet rows to
fill the mandral holes. I want something I can wipe on and then wipe off
the excess with a rag. I don't want to have to fill each one
individually.
Joel






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

-----Original Message-----
From: Bob Patterson <bob.patterson@canrem.com>
To: Murphy Rebel <murphy-rebel@dcsol.com>
Date: Monday, October 12, 1998 10:47 PM
Subject: Float Sealer

usually hours.





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