---------------------------------------------------------- RV10-List Digest Archive --- Total Messages Posted Tue 05/23/17: 2 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 07:13 AM - cowl heat protection (dlm) 2. 02:34 PM - Re: cowl heat protection (Patrick Thyssen) ________________________________ Message 1 _____________________________________ Time: 07:13:48 AM PST US From: dlm Subject: RV10-List: cowl heat protection I used a silicon backed layer of fiberglass mat; after 1000 hr. it was OK; no apparent delamination. From last June to April 2017, I found three areas of delamination and had to replace multi layers both sides of the Nomex core. Unfortunately last June, I let an FBO do some work and unknown to me, the baffling was not correctly reinstalled and sealed; it is unknown whether this contributed to the delamination. The cowl has been fixed except for the new heat protection. What are other builders using? what are your results? My plan now is to use the reflective aluminum adhesive back material for the areas near (less than 3") the exhaust system. Selected areas will also have Fiberfrax beneath the reflective foil. Per the heat document from Vans, I will not be wrapping selected exhaust system areas, although an IA friend says that turbine exhaust systems are routinely wrapped. Any suggestions other than NEVER LET ANYONE ELSE TOUCH. ________________________________ Message 2 _____________________________________ Time: 02:34:01 PM PST US Subject: Re: RV10-List: cowl heat protection From: Patrick Thyssen I have reflective aluminum on inside cowl, no problems just shy of 1000 hrs. I did paint inside of cowling so it had a good base to adhere to. Patrick Thyssen Sent from my iPad > On May 23, 2017, at 9:13 AM, dlm wrote: > > I used a silicon backed layer of fiberglass mat; after 1000 hr. it was OK; no apparent delamination. From last June to April 2017, I found three areas of delamination and had to replace multi layers both sides of the Nomex core. Unfortunately last June, I let an FBO do some work and unknown to me, the baffling was not correctly reinstalled and sealed; it is unknown whether this contributed to the delamination. The cowl has been fixed except for the new heat protection. What are other builders using? what are your results? My plan now is to use the reflective aluminum adhesive back material for the areas near (less than 3") the exhaust system. Selected areas will also have Fiberfrax beneath the reflective foil. Per the heat document from Vans, I will not be wrapping selected exhaust system areas, although an IA friend says that turbine exhaust systems are routinely wrapped. Any suggestions other than NEVER LET ANYONE ELSE TOUCH. ------------------------------------------------------------------------------------- Other Matronics Email List Services ------------------------------------------------------------------------------------- Post A New Message rv10-list@matronics.com UN/SUBSCRIBE http://www.matronics.com/subscription List FAQ http://www.matronics.com/FAQ/RV10-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/rv10-list Browse Digests http://www.matronics.com/digest/rv10-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.