>>3268220>About a hundred trillion parts on vehicles, installations and random objects that are outside in winterLab manager at a polymer research facility here. The other guy is absolotely correct--plastics DO get more brittle as the temperature drops. Just because plastics are used at cold temps doesn't mean that they aren't more brittle there than they would be at higher temperatures.
However, that's true of any material, including metal. Heck, for a fantastic real-world example of that: The famous steel "Liberty ships" built during WWII started experiencing sudden failures (the whole ship would break in half) if operated in seas which were too cold. Just google "liberty ship failure in cold seas".
Nearly all materials follow the trend illustrated in this pic. Plastics (and metals!) included.
