Chilly1 Evap, Condensation Issues.

[Vapor]

Here's what I'm doing...over the top, somewhat

Step 1. Conformal coating/PCB lacquer around the socket area, two layers...one layer around the rest of the board, front and back.
Step 2. Liquid Electrical tape, one layer around the socket area (make a big puddle and help it spread before it dries, getting into all the nooks and crannies of the caps around the socket). Front and back.
Step 3. Medium thickness, low-density, closed-cell armaflex/neoprene around the entire socket area. Front and back
Step 4. Low thickness, high-density, open- or closed-cell cork tape around the socket area.
Step 5. Grease in the socket and the seal of the gasket foam.

First step keeps moderate condensation out, 2nd step keeps serious condensation out, 3rd step keeps the temp delta down (to reduce the production of condensation), 4th step only helps that and add structure, 5th step ensures airtightness

EDIT: if you also want to throw in some RTV silicone/seal string around the socket and gasket foam from the mouting, it couldn't hurt