Check, http://hipec.falconaravia.com/, I have used Chris's products
and been very happy with them.

Ray


On Fri, 08 Oct 2004 17:36:15 GMT, Richard Lamb
wrote:

jls wrote:

"Jim Weir" wrote in message
...

Before you select the cheapest, may I suggest that you google on "Steve
Wittman"
and "accident".

Jim

Hey, Jim, I wouldn't violate an STC. I know all about Steve's tragic
accident and have read all the reports and articles. He unwisely used dope
as a fastener with the Stits process, which requires a vinyl-based glue and
weave filler to fasten dacron polyester to the wing structure. Catastrophic
flutter after fabric came loose on a wing or aileron is officially alleged
to be the cause of the deadly crash of his O-470-powered O&O Special. May
the great Steve Wittman and his new wife RIP.

And, by the way, I have used dacron often as a peel-ply for wet layups when
doing fiberglas work. That helpful quality of dacron polyester, i. e.,
that it doesn't stick and readily peels away after the layup has cured, is
enough to put one on notice that you better not use the wrong glue for
dacron unless you want to get your aXX busted.

I am just trying, cheapskate that I am, to find the best LEGAL covering
system for the money, not an aXXbuster.

Airtech, I understand, uses a different kind of glue. From what I can read
you don't, and can't, fasten dacron to an airframe with glues like dope.
You are compelled to penetrate the weave with a glue --Polytak, for
example -- which develops its own structure in the woven interstices of the
dacron with a web-like grip.

Unlike linen, polyester fiber has no nap. There is nothing for the dope
to hold on to. Poly Tack (the polyfiber fabric cement) encapsulates the
polyester fiber, giving good shear and (adequate) peal strength.

After that, the finishing system chosen is probably based more on
personal
preference than technical merit.

I used Polyfiber (Stits) on my parasol and am very pleased with the
results. Yes, it's a bit more expensive than some of the others, but
it's by far the easiest to repair (IMHO). I also appreciate the non-
flammibility issue.

Having said that, I'm seriously thinking about using Aerotech process on
Doc's new parasol. The reason for that is that Doc wants the airplane
to be as light as possible (His goal is under 400 pounds with a 2180).
And, from what I've seen, it produces a very smooth glossy surface.

I believe the single coat Aerotech system will be considerably lighter
than 6 coats of Polyfiber. (well duh!)

On the other other hand, it will be more difficult to repair without
the repairs showing.



Richard Lamb

http://home.earthlink.net/~n6228l/index.htm