What is the difference between a Mylar and a latex balloon?
A Mylar is an 18 inch foil balloon with a message such as Birthday, Anniversary, or Get Well. It has a valve or can be heat sealed so it can float 3-4 days firm, then float for a time after that. Round shapes last the longest because they have fewest stress points, followed by hearts then stars. A Latex is an 11 inch rubber type balloon that lasts about 12-15 hours in a controlled environment. Balloons are best kept in a cool dark place because sunlight will cause them to become cloudy. Outside a controlled environment latex balloons can move, dip, and sway. On hot humid days outdoor flying time can vary greatly, but generally speaking they will last about 8-10 hours. Latex balloons can be treated to last about 2 days, however, a change in size will be noticeable after the first 12 hours. Latex balloons come in about 13 different colors.
