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recoveing my old twinstar

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esp3500

Joined: 28 Feb 2020
Posts: 11

Posted: Sat Feb 29, 2020 9:28 pm Post subject: recoveing my old twinstar

I have a old ( 80's ) twinstar  that I am recovering. I an thinking of going with that Oratex fabric due to not having to use such toxic paints and glues.



Question, does anyone know how much fabric I need to order.

and has anyone used the Oratex system on theirs?



thanks

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Ken worth

Joined: 01 Mar 2020
Posts: 4
Location: Edmond, Oklahoma

Posted: Sun Mar 01, 2020 12:10 pm Post subject: Re: recoveing my old twinstar

I am also planning to use their product.

MK3 Classic

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Ken worth
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Rex Rodebush

Joined: 10 Jan 2006
Posts: 209
Location: Branson West area, Missouri

Posted: Wed Mar 04, 2020 10:50 am Post subject: Re: recoveing my old twinstar

Figure your square footage and add about 20%. You can always order more but make sure the color shade won't change.

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13brv3

Joined: 11 Jan 2006
Posts: 76

Posted: Fri Mar 06, 2020 7:32 am Post subject: Re: recoveing my old twinstar

I've never used it, but I was going to try it on the fuselage of the Slingshot.  Unfortunately, I could never get them to give me a price, and I'm afraid of how high it would have been also.  



If you, or anyone does recover wings with Oratex, please weigh the wings before and after.  One of the main features of Oratex is the light weight, but I haven't found any real world examples of the difference on the same structure.  It would be really interesting to know what the difference is on a typical wing panel, particularly for folks who want to stay under 103 weights.  



Rusty

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smgates

Joined: 13 Apr 2019
Posts: 13
Location: Perth, Australia

Posted: Sat Mar 07, 2020 1:43 am Post subject: Re: recoveing my old twinstar

Hi Rusty,



I've covered my Firestar II tandem with Oratex 600 (ultralight fabric) and it is only 9gm/sq ft versus about 20-90gm/sq ft measured by the Oratex dealer in Alaska on other painted fabrics from replaced fabrics, so a significant weight savings.



It is great to use because everything is non-toxic and water based so you can do it in the living room literally with no protective gear! It is a fair amount more expensive than some of the other fabrics, but because it is precoated with uv block and paint, there is a significant savings in painting costs and hassle/work.



The only drawback is that it is not shiny - it has a fine fabric weave, but for the benefits it offers, including patching a hole in about 10 mins with just the application of the water based heat-curing (not hot melt) glue and a hot air gun , you can't beat it - photo attached.



One caution; if you get the unburned fuel-oil mixture on it wipe it off or it could leave a dark brown stain.

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20171015_095405_resized.jpg

Description:

Firestar II covered with Oratex 600 fabric.

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williamtsullivan(at)att.n
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Posted: Sat Mar 07, 2020 5:57 am Post subject: recoveing my old twinstar

Brushed on, or sprayed on?  Looks great!  I did Poly Fiber in my living room with a brush.  And not much ventilation.  Stunk.



                                                      Bill Sullivan



                                                      Tarboro, NC

                        

                                                  





On Saturday, March 7, 2020, 04:44:31 AM EST, smgates <smgates(at)tpg.com.au> wrote:

--> Kolb-List message posted by: "smgates" <smgates(at)tpg.com.au>



Hi Rusty,



I've covered my Firestar II tandem with Oratex 600 (ultralight fabric) and it is only 9gm/sq ft versus about 20-90gm/sq ft measured by the Oratex dealer in Alaska on other painted fabrics from replaced fabrics, so a significant weight savings.



It is great to use because everything is non-toxic and water based so you can do it in the living room literally with no protective gear! It is a fair amount more expensive than some of the other fabrics, but because it is precoated with uv block and paint, there is a significant savings in painting costs and hassle/work.

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13brv3

Joined: 11 Jan 2006
Posts: 76

Posted: Sat Mar 07, 2020 6:18 am Post subject: Re: recoveing my old twinstar

 	  smgates wrote: 	
		  Hi Rusty,



I've covered my Firestar II tandem with Oratex 600 (ultralight fabric) and it is only 9gm/sq ft versus about 20-90gm/sq ft measured by the Oratex dealer in Alaska on other painted fabrics from replaced fabrics, so a significant weight savings.



	




Looks great, and I like everything about Oratex but the price.  I've seen plenty of weights given in square feet for test pieces, but nothing beats a real world weight difference of a wing panel.  I've never seen that listed anywhere.  



Given the range, and figuring a 120 sq ft wing, that makes a difference of 6-44 lbs.  I'm sure we're closer to 6, since the higher weight comparisons will be for older certified planes with cotton.  Still, if you were trying to make UL weight, 6-10 lbs would be a big help.



Rusty

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