The most popular and common balloon, 11″ latex balloon filled with helium gas generally lasts for 12-24 hours. If this 11″ latex balloon is coated with a non-toxic sealant called Hi-Float, their floating time increases to 2-3 days. On the other hand, foil balloons with helium gas last for 5-7 days. Therefore, if you are planning to blow balloons up the day before the event, make sure you are using foil balloons or latex balloons with Hi-Float coating.
Professor AtomView posts by Professor Atom
Professor Atom is a science enthusiast and alumni of IIT Bombay. According to him, every question can be solved with curiosity and mind mapping. ( Curiosity = Asking Questions = Learning )