"Larry Jaques" wrote in message
...
On Thu, 16 Feb 2012 10:33:29 -0500, "Jim Wilkins"
wrote:
...
No, but the aluminum can oxidize if the coating isn't UV rated.
Stainless usually uses a higher grade of acrylic adhesive, too.


The tape seals around aluminized bubble wrap which is the concentrator
reflector when the lids are open and the extra nighttime insulation when
they are closed.

Is it flexed too much?

That could be it.

I'm using flashing for strength and abrasion resistance over the aluminum
duct tape on my next project, a fold-up three sided + roof generator sound
enclosure made from fireproof acoustic ceiling tiles. While testing it I
found that adding a large external muffler makes little improvement, most of
the noise is mechanical.

jsw