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Hanaldo - 8/8/2018 6:13:03 AM

The epoxies will be fine, it's the styrene based resins that will suffer. Vinyl esters are especially sensitive. That said, I've only ever had Duratec products go off on me in the space of a couple of months of Australian summer. The VE infusion resin I had also went solid, but that took about 6 months.

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Hanaldo - 8/9/2018 4:30:25 AM

I actually store a lot of my products in the freezer at -18C. My more expensive polyester/vinylester based coatings like tooling gelcoat, Duratec primers/top-coats, etc. Make sure they are really well sealed so no moisture gets into them and they aren't worried at all. Let them defrost for a day before using them and they last virtually forever.

My cheaper and easier to obtain products like regular gelcoat and laminating resins etc. it doesnt worry me as much if they go off before I use them, so they live in the shed. I havent had any of them go off before I finish them yet though.