Has anyone found a way to preserve POR-15, after opening it? Options

[bondo]

I buy my POR-15 in quarts, but still never use nearly that much at a time. I tried to seal it in a plastic soda bottle, but it kept pressurizing it and I had to vent it every once in a while (exploding soda bottles are messy, but exploding soda bottles full of POR-15 are messy beyond all comprehension). Eventually it solidified, and I had to toss it.

An unopened can will last for years.. has anyone found a way to preserve that life after opening?

[SpecialK]

I've had pretty good luck using cap plugs (size #18) for the little cans. The sides of the cap plug is tapered and wants to pop back out, but the suction/vacuum caused by pushing the cap into the can keeps it in. POR doesn't stick to the caps so removal is easy, not sure what size the quart can would be, but I'm pretty sure they'd work just as well.

Refrigeration (not freezing) would help I would think, but the guy's at POR told me the shelf-life is only about a year, even for unopened cans (had some new ones cure on me (IMG:http://www.914world.com/bbs2/html/emoticons/dry.gif) , they replaced them free of charge (IMG:http://www.914world.com/bbs2/html/emoticons/huh.gif) (IMG:http://www.914world.com/bbs2/html/emoticons/ohmy.gif) (IMG:http://www.914world.com/bbs2/html/emoticons/smilie_pokal.gif) )


Sorry about the focus of the pic, forgot to press the macro button (IMG:http://www.914world.com/bbs2/html/emoticons/slap.gif)