[ELI5] Why do latex balloons deflate in roughly a day but a metallic balloon will last years? 527 viewsJanuary 3, 2024 Question90.33K May 6, 2021 0 Comments [ELI5] Why do latex balloons deflate in roughly a day but a metallic balloon will last years? In: Physics 1 Answer ActiveNewestOldest Anonymous Posted May 6, 2021 0 Comments Latex is porous – it contains tiny little holes. Helium is a tiny molecules, so it slowly passes thorough these pores and out of the balloon, deflating it. Meanwhile a mylar balloon has a denser structure that doesn’t allow helium out. Register or Login
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