Mattisons' Gap seals do the same, fraction of the price, and don't
freeze.

That's a good option. Art Mattson's gap seals are just plain-old 3M
tape, and (from what I've heard) they work great.

And, when they eventually wear out and you have to reinstall them, you
just buy another roll of tape. (Really!)
--
Jay Honeck
Iowa City, IA
Pathfinder N56993
www.AlexisParkInn.com
"Your Aviation Destination"