Charlie Smith wrote

Hotter temps mean shorter life.  Neoprene ... will reach a temperature
where it will have zero hours of life
and that point may not be readily apparent.

Kevin & Kim wrote:

On the other hand, it may be completely obvious, what with the flames and
all...
Seriously, how about polyurethane?  How do urethane elastomers fare in hot
envronments?
Kevin in Denver

Urethanes like to melt when overheated.  Otherwise they're pretty tough.
Charlie Smith
KIS Cruiser 4021

 
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