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PatrickW
Joined: 27 Oct 2006 Posts: 380 Location: Fort Worth, Texas
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Posted: Wed Nov 29, 2006 2:20 pm Post subject: Cortec thickness and Loose Rivets over time...? |
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Thread Friends,
I'm planning on applying Cortec to the mating surfaces before riveting my stabilizer together.
Are there any concerns with the cortec "wearing down" over a long time and resulting in loose rivets...?
Maybe after a few years of exposure to heat/moisture/vibration? Being that it's also water soluble, will moisture erode it?
Thanks,
- PatrickW
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amyvega2005(at)earthlink. Guest
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Posted: Wed Nov 29, 2006 2:48 pm Post subject: Cortec thickness and Loose Rivets over time...? |
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if riveted correctly, the surfaces should be solid for the life of the plane, why the Cortec might I ask?
Juan
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Ron Lendon

Joined: 10 Jan 2006 Posts: 685 Location: Clinton Twp., MI
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Posted: Wed Nov 29, 2006 3:31 pm Post subject: Re: Cortec thickness and Loose Rivets over time...? |
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Don't put it on to thick. I can see through my primer.
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_________________ Ron Lendon
WW Corvair with Roy's Garage 5th bearing
CH 601 XLB
N601LT - Flying
http://www.mykitlog.com/rlendon
Corvair Engine Prints:
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DaveG601XL
Joined: 27 Oct 2006 Posts: 351 Location: Cincinnati, Oh
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Posted: Wed Nov 29, 2006 6:04 pm Post subject: Re: Cortec thickness and Loose Rivets over time...? |
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Juan,
I, like Patrick, am using Cortec initially because ZAC recommended it. Now I love it because of it's lack of fumes when applying it. But if you put it on too thick or slap it on roughly so it bubbles, there is some thickness to it that I was also concerned about. I have scraped some off in places and re-applied due to it being too thick.
DaveG
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PatrickW
Joined: 27 Oct 2006 Posts: 380 Location: Fort Worth, Texas
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Posted: Thu Nov 30, 2006 7:25 am Post subject: Re: Cortec thickness and Loose Rivets over time...? |
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amyvega2005(at)earthlink. wrote: | why the Cortec might I ask? |
When I went to the Rudder Workshop it's what Zenith used. Prior to the start of the workshop they painted everyone's aluminum rudder pieces with Cortec.
So I figured I'd go with what they did and use it. I just didn't know if I should put it on quite as thick.
I think there is an additional benefit to Cortec - it's sticky, and after the parts are riveted together it will be like "rivets plus glue".
Would add more shear strength I would think. But would also harder to slide parts around, like fitting a piano hinge between two skin sheets for example.
- PatrickW
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