---------------------------------------------------------- Europa-List Digest Archive --- Total Messages Posted Fri 11/01/13: 5 ---------------------------------------------------------- Today's Message Index: ---------------------- 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) ________________________________ Message 0 _____________________________________ Time: 12:22:07 AM PST US From: Matt Dralle Subject: Europa-List: 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 ________________________________ Message 1 _____________________________________ Time: 05:22:55 AM PST US Subject: Europa-List: Re: upholstery backing From: "graeme bird" 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 ________________________________ Message 2 _____________________________________ Time: 06:53:49 AM PST US Subject: Europa-List: Europa Classic wing blistering From: "GBWFH2010" 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 ________________________________ Message 3 _____________________________________ Time: 07:07:11 AM PST US Subject: Europa-List: Re: Europa Classic wing blistering From: "gtagr" 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 ________________________________ Message 4 _____________________________________ Time: 07:31:34 AM PST US From: GRAHAM SINGLETON Subject: Re: Europa-List: 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 =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" =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 ================= ------------------------------------------------------------------------------------- Other Matronics Email List Services ------------------------------------------------------------------------------------- Post A New Message europa-list@matronics.com UN/SUBSCRIBE http://www.matronics.com/subscription List FAQ http://www.matronics.com/FAQ/Europa-List.htm Web Forum Interface To Lists http://forums.matronics.com Matronics List Wiki http://wiki.matronics.com Full Archive Search Engine http://www.matronics.com/search 7-Day List Browse http://www.matronics.com/browse/europa-list Browse Digests http://www.matronics.com/digest/europa-list Browse Other Lists http://www.matronics.com/browse Live Online Chat! http://www.matronics.com/chat Archive Downloading http://www.matronics.com/archives Photo Share http://www.matronics.com/photoshare Other Email Lists http://www.matronics.com/emaillists Contributions http://www.matronics.com/contribution ------------------------------------------------------------------------------------- These Email List Services are sponsored solely by Matronics and through the generous Contributions of its members.