How are balloons made?
The most common balloons are made from latex, a material that comes from sap of rubber trees. Water, curing agents, oil and colored pigment are all added to make a consistent, colorful mix and then put into an open vat. Before the mold can be dipped into the mixture a special coagulating agent is applied to the mold so that the latex will stick to it. Once the mold is dipped into the mixture a set of revolving brushes made the balloon neck that aids inflation. Then the balloon is washed with hot water to remove any other chemicals and moved to an oven where it cures at 200 degrees for about 25 minute before the balloon can be removed from the mold.