Ready Steady Eddy

[Neale]

I've used a fair bit of epoxy (usually thickened, though) for various boat repairs in the past and I can confirm that it is exothermic from personal experience. Fine in a wide, shallow, container but in a tall, narrow, container on a warm day - the pot was starting to smoke after a few minutes and it also starts setting much more quickly as it warms! For levelling, though, and assuming that it doesn't get too hot in the mixing pot, you are going to be putting a thin layer on a metal surface at ambient temperature so I doubt if temp will give problems; my guess is that viscosity is more important than setting time here, as long as it has time to run before it starts to gel.

As a solvent, epoxy resins don't seem to be as aggressive as, say, polyurethane resins. I used some small plastic pots for weighing out and mixing epoxy with no problem; first time I did the same with a 2-pack polyurethane, it went straight through the pot, the plastic tray I was using to catch the drips, and although the scales were metal and wiped clean, the stuff didn't do much for the plastic cover over the display which isn't quite so easy to read any more. My guess is that you are probably OK with the rubber sealing strip, but it would be easy enough to test a little bit first, maybe.