My other Akorn rusted out as a result of leaking where the rim of the inner tray is riveted to the outer tray. To prevent that, I sealed my new one.
I've owned two Akorns. One from September 2913 through May 2019 and now a replacement, bought in late May. My old one lasted 5.5.years completely exposed to the weather in rainy Seattle. I'd still be using it but the outer shell of the ash tray rusted through.
Hoping to extend the life of the new one, I set out today to seal the leak point that killed my last one. That leak point is the rim of the inner ash tray where it is riveted to the outer ash tray. See below.
Clean it off well with alcohol, and then seal it with whatever sealant you like. I used shoe goo.
That leaves three more leak points on the ash tray (which I also sealed on my last one): 1) the gasket surface, 2) the sliding vent, and 3) the screws affixing the latching bracket.
To help seal the gasket, bend the bails on both sides. See the photo. Posting from phone, so not at all sure where it will show.
Sliding vent on both of mine were very loose and had multiple visible gaps, despite factory sealant. Pull it off, clean off the old goo, clean with alcohol, and apply new sealant. I used shoe goo. I also peaned the rim to reduce gaps around the slider and gooped sealant around the closed end of the slider to positively seal it when closed.
Screws on the bail brackets also leak both water and air. I sealed mine with Permatex thread sealant.
Ashtray done, time to move on to the cover, which has two prominent leak points: the gasket surface and the top sliding vent.
To better seal the gasket area, ovalize the holes on the hinge, so you can push down on the cover to better squish the gasket before tightening the screws. See the photo.
The O-ring surrounding the top vent is an unreliable seal. Augment it with some silicone or shoe goo. While you have the vent off, use a file to mark fine gradiations for more precise vent control. See the pics.
While you are at it, put a bend in the front latch, to put additional sqish on the gaskets. See the photo, wherever it ends up.
Thusly sealed, an Akorn operates much more efficiently, and it goes right out when you shut all the vents.
Bend bail to tighten up ashtray gasket.
Ovalize holes from the bottom to allow more squeeze on the top-cover gasket.
Seal o-ring area with sealant and file in some precision vent indexing.
Also bend front latch to tighten gesket gap at front.