Today's Message Index:
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0. 12:22 AM - PLEASE READ - Matronics Email List Fund Raiser During November! (Matt Dralle)
1. 05:22 AM - Re: upholstery backing (graeme bird)
2. 06:53 AM - Europa Classic wing blistering (GBWFH2010)
3. 07:07 AM - Re: Europa Classic wing blistering (gtagr)
4. 07:31 AM - Re: Re: Europa Classic wing blistering (GRAHAM SINGLETON)
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Subject: | PLEASE READ - Matronics Email List Fund Raiser During November! |
Dear Listers,
Each November I hold a PBS-like fund raiser to support the continued operation
and upgrade of the Email List and Fourm Services at Matronics. It's solely through
the Contributions of List members (you) that these Matronics Lists are possible.
You have probably noticed that there are no banner ads or pop-up windows on any of the Matronics Lists or related web sites such as the Forums site http://forums.matronics.com , Wiki site http://wiki.matronics.com , or other related pages such as the List Search Engine http://www.matronics.com/search , List Browse http://www.matronics.com/listbrowse , etc. This is because I believe in a List experience that is completely about the sport we all enjoy - namely Airplanes and not about annoying advertisements.
During the month of November I will be sending out List messages every couple of
days reminding everyone that the Fund Raiser is underway. I ask for your patience
and understanding during the Fund Raiser and throughout these regular messages.
The Fund Raiser is only financial support mechanism I have to pay all
of the bills associated with running these lists. YOUR personal Contribution
counts!
This year we have a really HUGE and TERRIFIC line up of free gifts to go along
with the various Contribution levels. In fact, there are over 30 different gifts
to choose from - more than we've ever had before! There's something for everyone,
to be sure. Most all of these gifts have been provided by some of the
vary members and vendors that you'll find on the Matronics Lists and they have
been either donated or provided at substantially discounted rates.
This year, these generous members include:
Andy Gold of the Builder's Bookstore http://www.buildersbooks.com
Bob Nuckolls of the AeroElectric Connection http://www.aeroelectric.com
Corbin Glowacki of My Pilot Store http://www.mypilotstore.com
George Race of Race Consulting http://www.mrrace.com/
Jon Croke of HomebuiltHELP http://www.homebuilthelp.com
These are very generous guys and I encourage you to visit their respective web
sites. Each one offers a unique and excellent aviation-related product line.
I would like publicly to thank Andy, Bob, Corbin, George, and Jon their generous
support of the Lists again this year!!
Please make your List Contribution using any one of three secure methods including
using a credit card, PayPal, or by personal check. All three methods afford
you the opportunity to select one of this year's free gifts with a qualifying
Contribution amount!!
To make your Contribution, please visit the secure web site:
http://www.matronics.com/contribution
I would like to thank everyone in advance for their generous financial AND moral
support over the years!
Thank you!
Matt Dralle
Matronics Email List Administrator
RV-4/RV-6/RV-8 Builder/Rebuilder/Pilot
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Subject: | Re: upholstery backing |
That is all very helpful thanks; Uk Hide do Alcantra , got some samples, very nice
but very expensive; as much as best leather at around 90 per sq meter.
Also very thin. Found some fire retardant fabric at John Lewis (17). I'll see where
I can find some styrene.
--------
Graeme Bird
G-UMPY
Mono Classic/XS 912S/Woodcomp 3000/3W
Newby: 95 hours 18 months
g(at)gdbmk.co.uk
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=411903#411903
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Subject: | Europa Classic wing blistering |
Over the last 18 months the port wing of my Classic has developed a dozen or so
blisters on the upper surface. None of them are huge (most 1-2 cm with a max
of 3 cm) and my inspector is confident there is no structural problem. The aircraft
was completed in 1998, has always been kept in a well ventilated hangar
and far as I can ascertain this problem has not occurred previously, so it is
a bit of a mystery why this has happened now.
I want to rectify this problem but I have no build experience and would greatly
appreciate advice on the correct procedures, techniques and materials required
to remove these blisters and restore the wing to its original condition.
Thank you.
--------
Gordon Grant
G-BWFH
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=411910#411910
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Subject: | Re: Europa Classic wing blistering |
Hi Gordon, I have a similar problem and I' assured by Roger Targett that it is
not uncommon on glass a/c and on many gliders. The problem is apparently related
to moisture (perhaps from humidity levels at the time of surface preparation)
being sealed under the surface at the time of painting. So the remedy would
seem to be re-finishing of the affected areas - which I'm considering. It
is NOT due (as I've seen some assert) to osmosis - which is seen in fibeglass
boats where surfaces are under constant pressure and contact with water and in
part due to the peculiarities of the resins systems used in boats (see previous
post by Nev). Its cosmetic, but unsightly and probably another 1000-to-fix
job . . .
Clive.
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=411913#411913
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Subject: | Re: Europa Classic wing blistering |
Clive=0Ait probably IS due to osmosis, (imho) try puncturing a bubble, if y
ou get a dark brown=0Adrop of liquid that would be it. We have to accept th
at paint is not waterproof. =0AIf there is contamination on the surface bef
ore painting, water vapour will migrate through the paint =0Aby nudging a w
ater molecule off the end of a long chain molecule. One -OH will attach at
the surface and =0Aone will drop off the other end to dissolve the offendin
g contamination.The comtaminant signals via the =0Achain molecule that it w
ants water and osmosis does the rest.=0ASome waterproof breathable cloth is
made this way, like Goretex but at a molecular level. =0AIn that sutuation
body heat creates the vapour inside the garment which drives the water out
where it condenses=0Aand goes away with the rain. This is why Goretex is n
o good on a hot day, heat drives the water inwards.=0Abtw I won't argue wit
h Roger but I will discuss with him.=0AGraham=0A=0A=0A=0A=0A=0A=0A_________
_______________________=0A From: gtagr <clive.maf@googlemail.com>=0ATo: eur
opa-list@matronics.com =0ASent: Friday, 1 November 2013, 14:06=0ASubject: E
uropa-List: Re: Europa Classic wing blistering=0A =0A=0A--> Europa-List mes
sage posted by: "gtagr" <clive.maf@googlemail.com>=0A=0AHi Gordon, I have a
similar problem and I' assured by Roger Targett that it is not uncommon on
glass a/c and on many gliders.- The problem is apparently related to moi
sture (perhaps from humidity levels at the time of surface preparation) bei
ng sealed under the surface at the time of painting.- So the remedy would
seem to be re-finishing of the affected areas - which I'm considering.-
It is NOT due (as I've seen some assert) to osmosis - which is seen in fibe
glass boats where surfaces are under constant pressure and contact with wat
er and in part due to the peculiarities of the resins systems used in boats
(see previous post by Nev).- Its cosmetic, but unsightly and probably an
other =C2=A31000-to-fix job . . .=0AClive.=0A=0A=0A=0A=0ARead this topic on
line here:=0A=0Ahttp://forums.matronics.com/viewtopic.php?p=411913#411913
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