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Old Oct 17, 2003, 03:02 AM
James Gell
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n/a Posts
[RCSE] Foamie: Colored tape or film?

Any feelings on the relative merits, pro and con, of using either colored tape or film on a foamie?

What kind of colored tape? Colored duct tape?

TIA

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Old Oct 17, 2003, 03:02 AM
Douglas, Brent
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n/a Posts
RE: [RCSE] Foamie: Colored tape or film?

Having finally tried both, I have to say go with Ultracoat.... Hands down,
it's much better looking, it's stronger, it's not nearly as hard as I
thought it might be....
I did a Bluto and a Moth in the last month, using Ultracoat, and it's a big
step up from tape.

If you have never tried it before, look at NorthCountyFlyingMachines.com for
some pointers, and test on some scrap foam (CONSTANTLY) to keep the heat
right. You still spray the foam w/ 3M77, and then you strap tape the
leading and trailing edge, whatever other support you'd do. After that,
tighten the tape w/ an iron (again, test with scrap strapping tape), and
then do the ultracoat.

Good luck!
Brent
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Old Oct 17, 2003, 03:02 AM
Aerofoam
Guest
n/a Posts
Re: [RCSE] Foamie: Colored tape or film?


> Any feelings on the relative merits, pro and con, of using either colored tape or film

on a foamie?

I agree that ultracote looks better, BUT if you live in a warm climate you will be
re-shrinking
the film often and it isn't nearly as strong as 3m colored packing tape.
Remember that part of a foamies "composite" construction is "skin strength".
This is an important structural aspect. You can achieve it through strategic application
of filament tape in the proper fiber orientation, but the final skin provides a lot of
rigidity
to the structure.
In hot climates, smearing a layer of thinned contact cement works much better
than the spray 77. For warbirds and planes that like aq bit more weight (like my Corsair)
the best method is to apply the filament tape reinforcements, cover the plane with clear
premium packing tape for structure, then cover it with premium sign vinyl for color.
For scale paint jobs, the vinyl can be painted with krylon and it really adheres well.

Mark Mech
www.aerofoam.com

> What kind of colored tape? Colored duct tape?
>
> TIA
>
> RCSE-List facilities provided by Model Airplane News. Send "subscribe" and

"unsubscribe" requests to soaring-request@airage.com. Please note that subscribe and
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Old Oct 17, 2003, 03:02 AM
Andrew E. Mileski
Guest
n/a Posts
Re: [RCSE] Foamie: Colored tape or film?

Aerofoam wrote:
> I agree that ultracote looks better, BUT if you live in a warm climate you will be
> re-shrinking


I get about 3 shrinkings on my Zagi before the wrinkles become
permanent.

> the film often and it isn't nearly as strong as 3m colored packing tape.
> Remember that part of a foamies "composite" construction is "skin strength".
> This is an important structural aspect. You can achieve it through strategic application
> of filament tape in the proper fiber orientation, but the final skin provides a lot of
> rigidity
> to the structure.


I found that Ultrakote results in more stiffness.

> In hot climates, smearing a layer of thinned contact cement works much better
> than the spray 77.


I find Ultrakote will stick well enough without the 3M77. Not a humid
area, but it does get warm here... sometimes.

--
Andrew E. Mileski
Ottawa, Canada
http://isoar.ca/

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Old Oct 17, 2003, 03:02 AM
Dave Wenzlick
Guest
n/a Posts
Re: [RCSE] Foamie: Colored tape or film?

Here's an old "how-to" for my preferred method to get a scale finish.
http://www.azflight.com/scalesoaring/howto1.htm

Just a normal foamie sloper?. Use colored packing tape from Graingers,
Discount Packaging, etc.

Dave W.


----- Original Message -----
From: "Aerofoam" <aerofoam1@aerofoam.com>
To: <soaring@airage.com>
Sent: Thursday, October 16, 2003 11:33 AM
Subject: Re: [RCSE] Foamie: Colored tape or film?


>
> > Any feelings on the relative merits, pro and con, of using either

colored tape or film
> on a foamie?
>
> I agree that ultracote looks better, BUT if you live in a warm climate you

will be
> re-shrinking
> the film often and it isn't nearly as strong as 3m colored packing tape.
> Remember that part of a foamies "composite" construction is "skin

strength".
> This is an important structural aspect. You can achieve it through

strategic application
> of filament tape in the proper fiber orientation, but the final skin

provides a lot of
> rigidity
> to the structure.
> In hot climates, smearing a layer of thinned contact cement works much

better
> than the spray 77. For warbirds and planes that like aq bit more weight

(like my Corsair)
> the best method is to apply the filament tape reinforcements, cover the

plane with clear
> premium packing tape for structure, then cover it with premium sign vinyl

for color.
> For scale paint jobs, the vinyl can be painted with krylon and it really

adheres well.
>
> Mark Mech
> www.aerofoam.com
>
> > What kind of colored tape? Colored duct tape?
> >
> > TIA
> >
> > RCSE-List facilities provided by Model Airplane News. Send "subscribe"

and
> "unsubscribe" requests to soaring-request@airage.com. Please note that

subscribe and
> unsubscribe messages must be sent in text only format with MIME turned

off.
>
>
> RCSE-List facilities provided by Model Airplane News. Send "subscribe"

and "unsubscribe" requests to soaring-request@airage.com. Please note that
subscribe and unsubscribe messages must be sent in text only format with
MIME turned off.
>


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Old Oct 17, 2003, 03:02 AM
Bill Swingle
Guest
n/a Posts
Re: [RCSE] Foamie: Colored tape or film?




One other point, heat shrinking fiber reinforced strapping tape is waste of
time. The tape will shrink, the fibers won't. While the tape will quickly
sag back to it's original shape. It'll look good for a short time but the
strength benefit of the fibers will be no better than before the shrinking.

Bill Swingle
Janesville, CA
bill.swingle@adelphia.net

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Old Oct 17, 2003, 03:03 AM
Randy Bullard
Guest
n/a Posts
Re: [RCSE] Foamie: Colored tape or film?

Do you mean faster to build or faster in the air? Why is it faster?

Randy Bullard

> #7. Tape is light years faster. Ucoat is just silly by comparison.



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Old Oct 18, 2003, 03:02 AM
Bill Swingle
Guest
n/a Posts
Re: [RCSE] Foamie: Colored tape or film?


>Do you mean faster to build or faster in the air? Why is it faster?
> > #7. Tape is light years faster. Ucoat is just silly by comparison.



Well, the tape is lighter than the Ucoat but the small seems of the tape
act as turbulators to prevent boundary layer separation. I think it's a
wash in the air. :-)

But seriously, covering a plane in one fourth the time and only 1/30th the
cost is a genuine no brainer.

Bill Swingle
Janesville, CA
bill.swingle@adelphia.net

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