Tom Gressman asked about bonding bubblewrap to Mylar.  You can buy a 24" wide roll 25' long of bubblewrap bonded to quilted aluminum foil.  The product is called Reflectix, made by
 
Reflectix, Inc.
#1 School St.
Markleville, IN  46056 
1-765-533-4332
National  1-800 879-3645
 
I have been using Reflectix for wingbags for years.  In Wisconsin it is carried by a builder supply chain called Menards.  Just wrap it around your wing, cut off the extra and stick on a pair of Velcro self stick1 in. squares inside the joint every 8 inches.  I had  one wing with an 11 in. chord so I stuck on a duct tape extension for an extra inch for the Velcro.  I have a quarter scale Reiher-2  with a 17.5" root chord.  The fold was along the root with Velcro fastening both the LE and the TE.  I have a 2 meter one piece Lil' Scorpion wing with a one piece wing bag.  The Reflectix conforms to the polyhedral if the wing is carefully pushed down against the crease. 
 
 I imagine most of you have been warned not to use plain bubble wrap as it will let the sun cook the wing just like having a black wing upside down in the sun.
 
Bob Harold

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