I'm just asking here, but is there any chance that it may have something to do with the chemical properties in the Wet Fire? I assume you were referring to Ultimate Survival's "Wet Fire Tinder".

I had some in a kit in my backpack, I opened it and everything corroded. I thought it may have something to do with the iodine tablets, but I found no leak in the bottle. Just a thought.

Bisc.