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Jan 02, 2019, 02:13 PM
I'm a pilot, 100 yrs too late
Thermalin's Avatar
Thread OP
New Product

Solartex Replacement - Model Grade Oratex


I contacted BUSA about a replacement offerfing for Solartex as I've got a build half covered with Solartex and I'm out.
They said they're working on a replacement vendor and a model grade Oratex should be there in about 4 weeks.
I looked it up and it's used on full scale planes in two version depending on AUW of the aircraft and it seems is somewhat 'new', as it describes planes currently covered or in use, the oldest being 10 yrs, 300 total aircraft.

I assume if I purchase the model grade I may be on the cutting, errr bleeding edge of this product but i'm willing to give it a try due to the convenience of no painting.

I'm contacting the salesman listed on the Oratex site to find out about the model grade version that is coming out... I'll post what I get back in this thread.

The Oratex full scale site:
http://www.betteraircraftfabric.com/...questions.html

From BUSA:

Balsa USA <[email protected]>
11:56 AM (2 hours ago)
to me
We are working on a replacement and it should be here in about 4 weeks it is oratex model grade covering
Thank you,
Amanda
Last edited by Thermalin; Jan 02, 2019 at 02:40 PM.
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Jan 02, 2019, 02:41 PM
I'm a pilot, 100 yrs too late
Thermalin's Avatar
Thread OP
I read the application application instructions of the full scale offering on the website. I'll admit I'm spoiled with Solartex and I'm hoping the model grade will be less demanding regarding steps and wait times. I assume it will be...
Jan 03, 2019, 04:37 AM
Registered User
Application doesn't sound much different than Koverall. Except you don't paint the fabric too, just the airframe.
Edwin
Jan 03, 2019, 10:34 AM
Registered User
According to manufacturers, Solartex weighed from 7.9 to 8.8 grams/ft2

Oratex600, the lighter of the two, weighs 8.5 to 11.4 grams/ft2. But it's good for planes up to 1300 lbs! I wonder what "model grade" means.

Thanks for keeping us informed about this, hope it works out for you.

Jim
Jan 03, 2019, 02:46 PM
I'm a pilot, 100 yrs too late
Thermalin's Avatar
Thread OP
I didn't see it offered before I began this process but going to check again and put an order in as I'm sure it will go on backorder quick...

Looks to be 5 meter rolls only

From BUSA...
Mike
It is on the website but I am not processing any orders that have been placed until we have product in hand.

Thanks again,
Amanda
Jan 03, 2019, 02:48 PM
I'm a pilot, 100 yrs too late
Thermalin's Avatar
Thread OP
Quote:
Originally Posted by buzzard bait
According to manufacturers, Solartex weighed from 7.9 to 8.8 grams/ft2

Oratex600, the lighter of the two, weighs 8.5 to 11.4 grams/ft2. But it's good for planes up to 1300 lbs! I wonder what "model grade" means.

Thanks for keeping us informed about this, hope it works out for you.

Jim
I'm assuming it's a different, ligher weave perhaps or maybe a more simpler application based on what they may know about Solartex and what modelers are used to but I think that's wishful thinking. I've only use solartex but certainly willing to learn something new.
Jan 03, 2019, 02:58 PM
Registered User
It would be great if they make a lighter fabric for us modellers. Also, since we're not building full scale, I imagine adhesive on the frame only would be sufficient. I'd expect diluted aliphatic glue, or Modge Podge, would do, or Sig Stix-It, etc.
Jan 04, 2019, 06:57 PM
I'm a pilot, 100 yrs too late
Thermalin's Avatar
Thread OP
I ordered a 5m roll of white.
My Sig Citabria currently has the empenage and underside of wing covered in white Solartex. If it doesn't match like I hope, I'm not going to lose sleep over it. I figure after several flights it will dull down anyways.
Feb 04, 2019, 10:04 AM
Registered User
Pierre_de’ Loop's Avatar
Hi Themalin,

Any updates on the Oratex? I have a Taube 40 built up and ready to cover, but I'm on the fence about Oratex. I've used Koverall but I never got around to trying Solartex. Now I'm contemplating a 5 meter roll from BUSA for the Taube vs. an order of Koverall, Nitrate and Supercote from Sig.

Thanks
Feb 04, 2019, 12:19 PM
Registered User
Me Too ....
Thermalin and Pierre_de’ Loop
I'm 90% complete on a BUSA Citabria Pro.....

...I've really been waiting to see how this issue plays out. It's been a few years since completed a kit build...and of the dozen or so that I've built, all were covered with plastic film. I plan to paint this plane, but what to use? Planetex, Oratex, Koverall...jeez

I really need to get something ordered and get started.

What did you two end up going with.

Steve
Feb 04, 2019, 12:20 PM
Registered User
What a lurker....one post...too funny

s
Feb 04, 2019, 12:52 PM
Registered User
Pierre_de’ Loop's Avatar
Koverall is easy to use and looks fabulous, but sealing with dope is a smelly and time consuming undertaking. My family urged me to cover my Slow Poke with Monokote just to avoid the odor - and I use dope outside in the yard.

Buzzard Bait noted that Solartex weighed from 7.9 to 8.8 grams/ft2 and Oratex600 weighs 8.5 to 11.4 grams/ft2.

I'm trying to relate this to a covering I have used.

Monokote is 5.7 grams/ft2 and Koverall is 1.25 oz. per sq yd. or 35.2 grams per sq yd or about 3.92 grams/ft2.

Do I have that right?

Of course, Stix-It, dope and paint bump that Koverall weight up.

...or I could have just looked here: http://www.fatlion.com/sailplanes/weights.html
Last edited by Pierre_de’ Loop; Feb 04, 2019 at 01:56 PM.
Feb 04, 2019, 07:00 PM
Registered User
One problem that I see is the rolls are only 24'' wide and my 1/4 scale Taylorcraft wing has a 15'' chord.
That is a lot of waste I will be getting it from Better Aircraft Fabric.com it can be had 35'' and 70''.
Feb 05, 2019, 05:15 PM
Registered User
Pierre_de’ Loop's Avatar
I broke down and ordered some dope and a sprayer. Brodak is clearing out some of their dope stock and I picked up two 16 oz cans of Randolph cream colored dope for $5.99 each! I have enough Koeverall, thinner, and Stix-It on hand to complete the Taube so I might as well use it.
Feb 06, 2019, 08:05 PM
Registered User
Thanks for the “heads up” on the dope. Just ordered 4 cans. Great price!


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