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mdnanwelch7(at)hotmail.co
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 Posted: Mon Jun 07, 2010 4:13 pm Post subject: PolyFiber silver coats and their effect on radio signals |
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> Mike,
| Quote: | Your experiences directly contradict what they said, i.e. that the UV
damage will occur all over the plane and not just on top.
James
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Everyone,
My apologies to the aeroelectric list, since the topic has strayed from the effective blockage of radio waves from Poly Spray, to a wing's intregrity from sunlight blockage from P.S.
James,
My "experience" comes from from seeing countless thousands of things rot in the sun and rain. An item NOT left in the sun and the rain seems to last a long, long, long time....compared to the same kind of item left in the elements!
Whether it's a car, a board, a sheet of sheetrock, just about anything lasts longer stored inside. My fabric covered plane will NOT ever sit openly in the sun, at least not as long as I own it. I've seen too many airplanes just rot away, sitting on a ramp. Not mine. It will have a cover, or be in a hangar...period.
Since the primary purpose of the Poly Spray is to block the sun's rays, I don't personally see much need for something to be thoroughly "protected" that will never see direct sunlight. That's just me, I guess. It's like getting travel insurance, and never going anywhere.
Simple experiment: take two pieces of fabric, any fabric. Set one outside to see lots of sunshine and rain. Keep the other one indoors in a dry place. Let them sit there for a few years, say 4-5. That ought to do it. Look at the outside one. Tug on it. Look at the inside one. That's my "experience".
Yes, I'm aware of the Miller's position. They weren't as adamant last year, but whatever.
Considering their liabilty, how could they say anything else??
Another experiment: find someone who is in bad need of a suntan. Get a nice, hot sunny day. Have this pale skinned chap sit underneath a nice shade tree all day. How much sunburn did he get? Probably not a lot, I guess.
I'm not trying to be argumentative, just use what I believe to be my own personal judgement regarding sun protection.
Thanks for sharing your opinion.
Mike Welch
Hotmail has tools for the New Busy. Search, chat and e-mail from your inbox. Learn more. [quote][b]
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mdnanwelch7(at)hotmail.co
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| Posted: Mon Jun 07, 2010 4:35 pm Post subject: PolyFiber silver coats and their effect on radio signals |
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>This makes me wonder, does UV energy bounce off of the ground? Jared
Aeroelectric list,
Again, my apologies. This will be MY last reply to this subject. Any further discussion with me will need to be off-list. I realize the subject matter has strayed from the aeroelectric lists intent.
Jared,
Yes, UV light does bounce off the ground!! Of course!
Have you ever painted a house? The gutters, trim, posts, etc, in direct sunlight need to be repainted about every 7-10 years. Did you ever check out the underside of the eaves? Darn near new!! In fact, they usually only just get a coat of smoggy residue on them. A simple wash, and they usually look as good as the day after they were painted. Did they receive some of that bounced UV rays wear and tear? Sure!! How much? I'm not too sure, but I'd guess about a twentieth (or a hundredth!) of the wear and tear the parts in the sun got.
If the outside paint lasts 10 years in direct sunlight, I'd be willing to bet we won't be alive when the underside paint wears out.
This is my experience. Others opinions may vary, and I'm okay with that.
In answer to your other question, the wings and tailfeathers are A/C aluminum, the fuselage is chromoly tubing. Plenty of Poly Tak to hold things together!!!
Mike Welch
The New Busy think 9 to 5 is a cute idea. Combine multiple calendars with Hotmail. Get busy. [quote][b]
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