Helium is a gas that is often used to fill balloons. Many people use helium for party decorations, but did you know that there is a science to it? In this blog post, we will explore how much helium you should put in a balloon so that it floats to the perfect height.
What to consider when filling a balloon with helium?
When filling a balloon with helium, it is important to take into account the weight of the balloon itself as well as the weight of the object that will be attached to the end of the balloon string. A good rule of thumb is to fill the balloon with enough helium so that the total weight of the balloon and its contents is lighter than air. This will ensure that your balloon floats to just the right height.
Another factor to consider is the size of the balloon. A smaller balloon will need less helium than a larger balloon in order to float. This is because a larger balloon has more surface area for the helium to expand into, making it less dense than a smaller balloon.
How Much Helium Do I Need?
A general rule of thumb is that you’ll need about two and a half pounds (40 cubic feet) of helium for every 100 11-inch latex balloons or 50 18-inch mylar balloons. keep in mind that if you’re inflating larger balloons or if you want your balloons to float for an extended period of time, you may need more helium.
Tips for Making Helium-Filled Balloons Last Longer
There are a few things you can do to make sure your helium-filled balloons stay afloat longer:
1. Fill your balloons as close to the event start time as possible—the fresher the helium, the better!
2. Choose good quality latex or mylar balloons—they will hold their shape and float better than cheaper alternatives.
3. Use hi-float gel inside latex balloons—this will help seal in the helium and keep your balloons afloat for days instead of hours.
4. Keep away from sharp objects—helium-filled latex balloons can pop easily, so avoid hanging them near anything that could potentially puncture them.
Now you know how much helium to put in your balloons so that they’ll stay afloat both indoors and out. With this knowledge, you can avoid those pesky popped party decorations and make sure your next event is floating on air!