You can make a gasket to fit any door with GE Silicone II Bathtub caulk.
Don't get the kind that smells like vinegar, rather get the kind that smells
more benign.(alcohol based) Yes, you should read the label to tell the
difference.
Put a bead around the door jamb and waxed paper on the door.
Close the door, but not tight. I used a toothpick on mine to let the gasket cure
so that a little pressure is required to latch the door.
Let the caulk cure for up to a week. The wax paper will keep the door and gasket
from sticking together until the caulk cures.
Once the caulk is cured, peel off the waxed paper. If you want a little air circulation
just trim off a bit of gasket until you get your desired air/rh exchange rate.
On my humi I sealed the door tightly, but I left the window unsealed. In the winter
I add a small cap of water once per week to my 150 ct. In the summer the
ambient rh is high enough that I only add water every few weeks.
This is the same method we used at the local airport to seal doors on aircraft, from
leaking in the rain. Those gaskets were up to an inch thick in spots.
Put your smokes in tupperware, while forming the gasket. Fumes, and such.
Chemyst
