interesting...
I simply use self adhesive, closed foam gaskets and dielectric grease in all my TEC rigs though... that's all... i don't even use RTV silicone with self adhesive neoprene gaskets...
same thing on my Vapochill SE box with R404a (Vapo SE w/ R404a = Vapo XE
... and I'm running the heating elements @ 20% ...
oh and why so many 90 degree elbow connectors Jason ? :shrug:
Bruce