Why are super glue bottles half full?

Have you ever wondered why super glue bottles are only half full? At first glance, it might seem like you're getting shortchanged. But there's actually a good reason for it.

Super glue is a type of adhesive that dries very quickly. In order to prevent it from drying out in the bottle, the manufacturer leaves some space at the top. This air space helps to reduce the amount of moisture that can get into the bottle and cause the glue to harden.

Another reason for leaving some space in the bottle is to give it room to move around. When you squeeze the bottle, the glue needs to be able to flow freely. If the bottle were completely full, it would be much harder to use and you might end up with glue everywhere.

So, while it might seem like you're not getting your money's worth with a half-full bottle of super glue, it's actually a design that helps to ensure that the glue stays fresh and easy to use. So next time you use super glue, you can appreciate why the bottle is half full.